题目内容
Their plan was built on ________ and couldn't be tested by the practical life.
[ ]
A.sand
B.sands
C.sandy
D.sanding
答案:
解析:
解析:
|
句意:他们的计划不切实际,经不起实际生活的检验。 built on sand固定结构“不稳固的”。 |
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