Grass absorbs carbon dioxide the same way trees ________, but on a smaller scale.

Grass absorbs carbon dioxide the same way trees ________, but on a smaller scale.
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    People hope that the growing popularity of electric cars will have an effect ________ air quality in big cities.

    People hope that the growing popularity of electric cars will have an effect ________ air quality in big cities.
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      Ever since Jennifer began spending Thanksgiving Day with relatives or friends, it ________ a source of anxiety.

      Ever since Jennifer began spending Thanksgiving Day with relatives or friends, it ________ a source of anxiety.
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        It is high time that we ________ a different strategy---do less and think more.

        It is high time that we ________ a different strategy---do less and think more.
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          Once we learn a sound, if it's ________ to us often enough, we form a memory of it.

          Once we learn a sound, if it's ________ to us often enough, we form a memory of it.
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            As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i

            As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i
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              As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i

              As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i
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                As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i

                As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i
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                  As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i

                  As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i
                    阅读更多

                    As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i

                    As a high school student in the 1970s, Mariko Kato was fascinated by physics. At an after-hours physics club at her school, she was so busy hearing Richard Feynman's lectures on quantum mechanics (量子力学) that she barely noticed she was the only girl i
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                      Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t

                      Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t
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                        Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t

                        Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t
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                          Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t

                          Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t
                            阅读更多

                            Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t

                            Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t
                              阅读更多

                              Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t

                              Can a stimulating hobby decrease your risk of Alzheimer's disease (阿尔兹海默症)? Maybe, but don't count on it. Some days all I want to do when I get home is sit down in front of the TV set and let my brain go blank. You probably know the feeling. But if t
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