单项选择题


Questions 14-16 are based on a lecture on human language. You now have 15 seconds to read Questions 14-16.
How many periods of time do the researchers study on children’s language development

A．Two.
B．Three.
C．Four.
D．Five.
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单项选择题
Which of the following cannot explain how landslides happen
A．When large amounts of rock, mud and other loose materials are suddenly uprooted and sent sliding down a slope.
B．This might be caused by an earthquake or it might happen after a heavy rain or when soil becomes waterlogged after a fall of snow.
C．This might be caused by forest fire.
D．The hillsides have been stripped of trees which are rooted on them.
单项选择题
According to the passage which one of the following is in accord with Diogenes’s philosophy
A．We should lead a lazy and idle life.
B．People should live a natural and simple life.
C．We’d better enjoy a luxurious life.
D．We should make an easy living just like a dog.
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