题目内容

ListeningPartSomeofourproductsareexportedto_______.

A. Japan
B. SouthAfrica
C. Korea
D. Europe

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Ihaven’tdecided_____hoteltostayat.

A. which
B. what
C. at which
D. where

I have no idea______ the meeting will be held.

A. that
B. which
C. if
D. where

“Precisionequipment”means_______.

A. 精密校准
B. 精密测量
C. 精密仪器
D. 精密数据

“Calibratingperiod”means______.

A. 校准频率
B. 校准周期
C. 校准时间
D. 校准标准

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