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【简答题】
压电传感器中的压电元件材料常用的有哪三类
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举一反三
【单选题】While mother____some washing,I____a kite for Jack.
A.
did,made
B.
was doing,made
C.
was doing,was making
D.
did,was making
【单选题】用直流电压表测得放大电路中某三极管各极电位分别是2V、6V、2 . 7V,这个三极管是 ( ),
A.
击穿
B.
放大三极管
C.
PNP
D.
NPN
【判断题】一般来说,网上营销比传统的大众媒体营销花费较多。
A.
正确
B.
错误
【简答题】测某电路中三极管各极电位分别是0 V、-6V、0.2V则三极管的三个电极分别是( ),该管是( ),其管型为( )。 备选答案(选A-G中一个填空): A. (E 、C、B) B.(C、B、E) C.(B、C、E) D.(PNP) E.(NPN) F.(硅管) G.(锗管)
【单选题】测得某放大电路中三极管各极电位分别是0V、-6V、0.2V则三极管的三个电极分别是( )。
A.
E,C,B
B.
C,B,E
C.
B,C,E
D.
B,E,C
【单选题】While mother ____ some washing, I ____ a kite for Kate.
A.
did; mad
B.
was doing; made
C.
was doing; was making
D.
did; was making
【判断题】一般来说,网上营销比传统的大众媒体营销花费较多。( )
A.
正确
B.
错误
【单选题】While mother _____ some washing, I _____ a kite for Kate.
A.
did, made
B.
was doing, made
C.
was doing, was making
D.
did, was making
【单选题】While mother _____ some washing, I ______ a kite for Kack.
A.
did… made
B.
was doing… made
C.
was doing… was making
D.
did… was making
【单选题】某患者,男性,40岁,新近被诊断患有冠心病,但患者仍不注意休息,反而增加活动量试图证明自己没有病,此患者属于角色适应问题中的:
A.
角色行为消退
B.
角色行为冲突
C.
角色行为强化
D.
角色行为异常
E.
角色行为缺如
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