题目内容

楼梯是由（）组成的。

A. 楼梯段
B. 楼梯平台
C. 栏杆扶手
D. 楼梯斜梁
E. 楼梯面层

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楼梯梯段的踏步数量应满足（）要求。

A. ≤3级
B. ≥18级
C. ≥3级
D. ≤18级

Listen to a short passage three times and fill in the blanks, then offer the answers.

The most famous prehistoric monument in Britain_____.

A. The Hadrian's Wall
B. Stonehenge
C. Westminster Abbey
D. The Tower of London

In 55 and 54 B.C., Britain was twice invaded by Roman troops under _______.

A. Claudius
B. King Alfred
C. Julius Ceaser
D. William the Conqueror