In order for the experiment to be valid, it is ______ to record the data accurately. A.essential B.c...
2022-06-22 16:19:03 173次 2020届江苏省镇江市九校高三三月大联考英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
In order for the experiment to be valid, it is ______ to record the data accurately.
A.essential B.confidential C.potential D.definite
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