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【多选题】
的性质()
A.
为一平面交线
B.
一般为封闭的空间线
C.
为两立体表面的共有线
D.
是两立体表面的分界线
E.
都是不规则曲线
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举一反三
【单选题】在接收机中,克服信号衰落现象的电路是_____。
A.
输入保护电路
B.
AGC电路
C.
解调前设置限幅器
D.
静噪电路
【单选题】在接收机中,克服衰落现象的电路是_____。
A.
输入保护电路
B.
AGC电路
C.
解调前设置限幅器
D.
静噪电路
【简答题】Identify personality factors that may contribute to the SUCCESS of learning a second/foreign language.
【单选题】After China launched a______to popularize Chinese, lots of Confucius colleges have appeared in foreign universities.(青岛市)
A.
campaign
B.
movement
C.
measure
D.
struggle
【单选题】With Shanghai World Expo drawing near, volunteers are making use of every minute to ____ their foreign language because language volunteers must pass a written test and an interview.
A.
polish up
B.
take up
C.
use up
D.
make up
【单选题】The students gave a quick answer to the question ________they did it,________was raised by the foreign visitors.
A.
which;which
B.
why;which
C.
why;that
D.
that;that
【单选题】The ______ is the agency taking the responsibility of inspecting and supervising the foreign exchange business of financial institutions.
A.
The SAFE
B.
The PBC
C.
The IMF
D.
The State Council
【单选题】听力原文: India and Pakistan have agreed to set up a telephone hotline between their foreign ministries to reduce the risk of nuclear war. An Indian Foreign Ministry spokesman says the two countries will ...
A.
To improve telecommunications.
B.
To avoid misunderstanding.
C.
To warn of military clashes.
D.
To prevent nuclear confrontation.
【判断题】采用数字积分法插补直线和圆弧时,每一个脉冲只能走一个步距 单位 ,或者 X,或者是 Y
A.
正确
B.
错误
【单选题】在接收机中,克服衰落现象的电路是()。
A.
输入保护电路
B.
设置AGC电路
C.
解调前设置限幅器
D.
静噪电路
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