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【单选题】
下列原则中,不属于政府采购原则的是()。
A.
公开透明原则
B.
公平竞争原则
C.
公平原则
D.
诚实信用原则
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举一反三
【单选题】盈亏平衡销量模型设计时,结论文字的生成,使用的运算符号是
A.
&
B.
@
C.
+
D.
【单选题】玉琮雕刻造型是引用了中国传统文化的哪些因素
A.
方形
B.
圆形
C.
天圆地方
【简答题】Probably nothing can make students feel lower or higher _____ (emotion) than the waythey are relating to whomever they are having a romantic relationship with.
【单选题】T here is nothing in the world can make him give up his dream.
A.
that
B.
what
C.
which
D.
who
【多选题】Direction: Individuals can do nothing to improve the environment, and only governments can make a difference. To what extent do you agree or disagree ? Choose what individuals (rather than governments...
A.
huge investment not only in capital but also in human resources
B.
recycling household wastes
C.
public transportation instead of private vehicles;
D.
increasing people's awareness by means of non-commercial ads
E.
avod using plastic bags harmful for the environment
F.
regulation and prohibition on daily practices, even punishment for those people with misbehaviors
【单选题】图所示的交流电压的波形图中,其最大值为( )
A.
4A
B.
5.66A
C.
2.83A
D.
无法确定
【判断题】PTO为高速脉冲串输出,它可输出一定脉冲个数和一定周期的占空比为50%的方波脉冲。( )
A.
正确
B.
错误
【单选题】Nothing can make the brave soldier _______ his country.
A.
turn against
B.
to turn against
C.
to turn to
D.
turn to
【判断题】含RLC的一端口电路,在特定条件下出现端口电压和电流值相等的现象时,称电路发生了谐振。
A.
正确
B.
错误
【判断题】PTO为高速脉冲串输出,它可输出一定脉冲个数和一定周期的占空比为50%的方波脉冲。
A.
正确
B.
错误
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