不定项选择

松动围岩压力可以用平衡拱理论来计算。

A．正确
B．错误
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What is the author's attitude towards 'the law that governs brute creation'?A.He advocates the law.B.He objects to the law.C.He remains indifferent.D.His attitude is unclear.
A.He
B.
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The author's mentioning of the Prime Minister out of office and the General without an army is for ______.A.exemplificationB.comparisonC.contrastD.addition
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