26. It is difficult to do some of the experiments ________ in our physics textbooks.A.to describeB.d

题目简介

26. It is difficult to do some of the experiments ________ in our physics textbooks.A.to describeB.d

题目详情


26. It is difficult to do some of the experiments ________ in our physics textbooks.
A.to describeB.describingC.describedD.being described
题型:单选题难度:偏易来源:不详

答案

C

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