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【单选题】
对停止供货（）以上，又重新供货的企业，其产品首次使用时也必须按照检验标准进行进货检验和型式试验的检验。A.
半年
B.
一年
C.
两年
D.
三年
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举一反三
【单选题】After the heavy snow, many students helped to clear away the snow ______ in our school.
A.
willingly
B.
sincerely
C.
properly
D.
calmly
【简答题】同义句改写:The meeting was called off because of the heavy snow. The meeting was___________ because of the heavy snow.
【多选题】When the station is closed because of the heavy snow, what should station officers do?
A.
A station officer should broadcast that the station is closed for the heavy snow reason.
B.
A station officer should guide the passenger to the transfer station for another ride.
C.
A station officer should advise the passenger to walk on the non-slip mat and leave the station safely.
D.
A station officer should tell the passengers to leave the station in order and take other transportation patiently.
【单选题】Not until the heavy snow blocked the express ____ how serious the weather was.
A.
the villagers did realize
B.
the villagers realized
C.
did the villagers realize
D.
didn’t the villagers realize
【判断题】综合布线系统的最新国家标准有GB 50311-2016 《综合布线系统工程设计规范》和GB 50312-2016 《综合布线系统工程验收规范》。( )
A.
正确
B.
错误
【单选题】We couldn't see the road clearly the heavy snow.
A.
because
B.
because of
C.
so
D.
though
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