单项选择题

In this passage, what does the term "coalescence" refer to

A．The gathering of small clouds to form large clouds.
B．The growth of droplets.
C．The fall of raindrops and other precipitation.
D．The movement of dust particles in the sunlight.

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热门试题

单项选择题

What does the man offer to do for Helen

A．Drive her to the test site.
B．Help her get ready for the road test.
C．Sell her a car.
D．Drive her car into her garag

单项选择题

What problem did the man have when he took his road test several years before

A．He drove too fast.
B．He couldn't park well.
C．He made an improper turn.
D．He could park well.