赞题库-背景图

单项选择题

______, Detroit was the home of the most productive automobile factories in the world.

A．At a time
B．At no time
C．At one time
D．In no time

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热门试题

单项选择题If you want to start a weight control program, you should ______.

A．ask your doctor
B．plan meals and choose low-calorie foods
C．do some exercise
D．all of the above

单项选择题Which of the following is NOT implied in the passage

A．Ability to learn to speak a language is inborn in man
B．Children do not need to be encouraged to learn to speak
C．Early language starters are not necessarily highly intelligent
D．Most children learn their language in definite stages