第20题: [单项选择]木材的力学性能为各向异性，表现为( )。 A. 抗拉强度，顺纹方向最大 B. 抗拉强度，横纹方向最大 C. 抗剪强度，横纹方向最小 D. 抗弯强度，横纹方向与顺纹方向相近 参考答案:A 答案解析:[解析] 木材顺纹方向抗拉强度最大
第21题: [单项选择]They have decided to ______ physical punishment in all local schools. A. put away B. break away from C. do away with D. pass away 参考答案:C 答案解析:[解析] 考查词组辨析。do away with意为“废除，取消”，能与punishment搭配，为正确答案。put away意为“把……收起，收好；贮存；放弃(想法)”；break away fro
第23题: [单项选择]He wasn't shocked by what he had been told; he Was astonished that it ______ said to him by his own daughter. A. was B. had been C. was being D. should have been 参考答案:D 答案解析:根据时态参照，主句was astonished是过去时，从句应该是发生在此动作之前，因此必须用完成体形式，且“should+have done”占构有表示“出乎意料或者竟然做某事”之意。
