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【多选题】
下列变量中属于连续变量的有A.
粮食产量
B.
植树株数
C.
机器台数
D.
人均年收入
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反馈参考答案：
举一反三
【简答题】start with a ( )phrase. ( ) the structure of the presentation give the ( ) move to the ( ) to ( ) / to summarize / to conclude
【单选题】The phrase 'anticipate the green light'(Line 1, Para. 3)is closest in meaning to
A.
wait for the green light to be on.
B.
forbid others to move before the green light.
C.
move off before the green light is on.
D.
follow others when the green light is on.
【单选题】We've been doing it this way for years; don't rock the boat by trying to introduce new methods. The phrase rock the boat means_
A.
to have missed an opportunity and may not get another
B.
to do something that upsets a situation and causes problems
C.
to cause something to shake or move backward and forward or from side to side
D.
to turn somnething upside down or on its side
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