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【简答题】
DDS数字直接频率合成信号发生器的优点是频率分辨率高、( )、相位连续、( )、集成度高、体积小。
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皮皮学刷刷变学霸
举一反三
【简答题】简述协调训练基本方法
【单选题】In fact, the Iraq war was fairly______across the West.
A.
conversational
B.
contradictory
C.
contrary
D.
controversial
【单选题】According to the investigation, the D-train accident resulted from the fact that the authorities concerned didn’t _________ enough importance to the safety of the signal equipment.
A.
appeal
B.
adapt
C.
acquire
D.
attach
【单选题】The fact is that citizens ______ enter this palace without special permits.
A.
is allow not
B.
are not allowed
C.
were not allowed
D.
are not allowed to
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