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【判断题】
分立元件的多级放大电路的耦合方式通常采用阻容耦合。()A.
正确
B.
错误
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【单选题】听力原文： Four people were killed and more than 50 injured when fans rushed to get into a stadium in Chicago yester day where the British pop group Fantasy were giving a concert. The incident occurred whe...
A.
4
B.
15.
C.
50.
D.
More than 54.
【简答题】车削加工时车刀的纵向进给量f=0.3mm/r,工件转速n=450r/min,求进给速度v f. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【简答题】(5)广义表运算式HEAD(TAIL((a,b,c),(x,y,z)))的结果是:__________。
【单选题】More than 200 fans were waiting at the airport late in the evening in the hope that they would ______ their favorite pop singer.
A.
catch up with
B.
reach to
C.
catch a glimpse of
D.
get through
【单选题】Trains with the first letter D or Z can run __________ a speed of more than 200 kilometers an hour when it travels __________ the desert.
A.
with; cross
B.
in; through
C.
at; across
D.
for; in
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