单项选择题

冲积扇的大小与哪些因素无关

A．汇水面积
B．河道宽度
C．气候
D．构造运动

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What is true about marriage in most Western countries?

A．They care a lot about educational and family background.
B．They are more concerned about love than money or status.
C．They won’t easily get a divorce because families are important for them.

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“快速修剪”的快捷键是哪个？
A、E
B、Y
C、T
D、R