We should make a careful study of his.A. useful teaching experiencesB. useful teaching exp

发布时间：2020-08-17 12:21:33

We should make a careful study of his    .
A. useful teaching experiences
B. useful teaching experience
C. usefully teaching experiences
D. usefully teaching experience

网友回答

A. useful teaching experiences
(答案→)B. useful teaching experience
C. usefully teaching experiences
D. usefully teaching experience
解析：experience作“经验”解时，为不可数名词；用作可数名词时，意为“经历”。
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