机械制图规定,设计时给定的尺寸称基本尺寸。()
参考答案:对
Unions would like more __________ working hours to replace the nine-to-five, forty-hour week.
A.flexible
B.changing
C.moveable
D.variable
标志着伊斯兰教在阿拉伯半岛取得胜利的标志是( )城的归顺。
A.麦加
B.麦地那
C.耶路撒冷
D.大马士革