For the experiment to be valid, it is______ to record the data accurately.
For the experiment to be valid, it is______ to record the data accurately.
A、convenient
B、feasible
C、essential
D、tricky
【正确答案】:C
【题目解析】:句意:为了实验的有效性,准确的记录数据是必不可少的。it is essential to…做..是必不可少的。
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