【单选题】Don’t all speak at once! , please.
A．Each at one time
B．One by one time
C．One for each time
D．One at a time
网考网参考答案：D
网考网解析：
one at a time 一次一个。
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【单选题】Don’t all speak at once! , please.
A．Each at one time
B．One by one time
C．One for each time
D．One at a time
网考网参考答案：D
网考网解析：
one at a time 一次一个。
查看试题解析出处>>
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