题目：（ ）30． Many families were affected because of ________ ．
A． the heavy rain on Monday
B． the broken banks of the river
C． the floods across Mexico
D． the death of 132 people
喵查答案……继续阅读 »
题目：From the end of the first paragraph we know that ________.
A. children are more friendly to strangers
B. American schools are not safe for kids
C. children often follow their pa……继续阅读 »
题目：下列对“无砟轨道”说明不准确的一项是( )(3分)
A. 无砟轨道在水泥板上面直接铺钢轨。
B. 无砟轨道由五部分组成，从下往上依次是无缝钢轨、轨道板、填充层、底座板、滑动层。
C. 无砟轨道板打磨加工时，用的水泥沥青砂都要经过多次淘洗。
D. 无砟轨道最显著的特点是使用无缝钢轨。
喵查答案：B
……继续阅读 »
