成语“黄袍加身”说的是哪位皇帝发动 * * 的故事？（）
A.李世民
B.赵匡胤
C.刘邦
D.朱元璋
参考答案：B
曲轴与凸轮轴间的正时传动方式有（）、（）、齿形带传动等三种形式。
The settlement is home to nearly 1,000 people, many of（）left their village homes for a better life in the city.
A. whom
B. them
C. which
D. those
