下列各项中,对“徘徊”一词归类正确的有()。
A.连绵词
B.单纯词
C.合成词
D.复合词
E.派生词
参考答案:A, B
刀具后面磨损量VB值增加,加工硬化层深度h______。
A.亦增加
B.会减小
C.没有变化
D.有时加深,有时减小
Mr Smith, there is someone at the front desk would like to speak with you.[ ]
A. he
B. who
C. which
D. whom