企源知识库

Such electron tubes ________ in a radio set are also found in a TV set.
A、that we use
B、as we use
C、as we use them
D、that we use them
【正确答案】：B
【题目解析】：句意：我们在收音机中使用的电子管在电视机中也能找到。句子的主语是such electron tribes，谓语are found, as引导定语从句，可在定语从句中做宾语。