允许速度大于120km/h的线路,轨距的变化率不得大于()(不含规定的递减率)。
A.1‰
B.1.5‰
C.2‰
D.2.5‰
参考答案:A
词汇运用(共8小题;每小题1分, 满分8分)
(A) 根据句意,用所给单词的适当形式填空
小题1:A report says that ____________ (marry) men usually save more money than single men.
小题2:English is such a useful language that we have to use it in our daily ___________ (communicate).
小题3:Air ____________ (pollute) is becoming worse and worse. We must take action right now.
小题4:The weather in the north is usually better than that in the ____________ (south) part of China.
(B) 根据句意及所给汉语提示完成单词拼写
小题5:I really hope to go abroad for getting more traveling ____________ (经历).
小题6:The rain kept beating ____________ (撞,碰) the windows, and the little girl looked so sad.
小题7:Since Mo Yan won the Nobel Prize, he has become ____________(世界闻名的).
小题8:Every day there are a number of ____________ (评论) about the missing plane.
在肺癌的各种诊断手段中,CT由于其分辨率高可清楚显示肺野中()cm以上的肿块阴影
A.0.5
B.1
C.1.5
D.2
E.2.5