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【多选题】
影响小信号放大器稳定性的因素包括[ ]
A.
结电容 的存在
B.
Y参数等效电路中的 不为零
C.
放大器所处平台不稳定
D.
放大器电路中元件焊接不牢固
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【单选题】如果对选课表中学生的选课成绩限定在0~100这个输入范围,应使用( )约束。
A.
PRIMARY KEY
B.
FOREIGN KEY
C.
UNIQUE
D.
CHECK
【单选题】Comparatively speaking, the solution part is _____ the problem part in problem-solution order.
A.
less important than
B.
as important as
C.
none of the above
D.
more important than
【单选题】● When a large packet wants to travel through a network whose MTU is too small, one solution is to allow routers to break up the packet into (). ()
A.
messages
B.
frames
C.
fragments
D.
bits
【单选题】Well, let’s put our heads together and find ___to the problem。
A.
an answer
B.
a solution
C.
a way
D.
a method
【单选题】A ______ to this problem is expected to be found before long.
A.
result
B.
response
C.
settlement
D.
solution
【单选题】药物在治疗剂量时出现的与治疗目的无关的作用 是 ?
A.
副反应
B.
毒性反应
C.
特异质反应
D.
后遗效应
【多选题】下列各项可以作为应收账款入账金额的项目是 ( )
A.
.应收销货款
B.
销项税额
C.
商业折扣
D.
现金折扣
【多选题】下列各项可以作为应收账款入账金额的项目是( )
A.
销项税额
B.
商业折扣
C.
现金折扣
D.
应收包装物租金
【单选题】Telecommuting——substituting the computer for the trip to the job-has been ______ a solution to all kinds of problems related to office work.
A.
hailed as
B.
drawn out
C.
born out
D.
lodged in
【单选题】如果对选课表SC中学生的选课成绩grade限定在0~100这个输入范围,应使用( )约束。
A.
PRIMARY KEY
B.
FOREIGN KEY
C.
UNIQUE
D.
CHECK
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