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【单选题】
急性胆囊炎时出现右肩背部疼痛属于( )
A.
脏性疼痛
B.
躯体性疼痛
C.
牵涉性疼痛
D.
弥散性疼痛
E.
迟钝性疼痛
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【简答题】某单调谐放大器如图例2—3所示,已知f0=465kHz,L=560μH,Q0=100,N12=46圈,N18=162圈,N45=13圈,晶体管3AG31的Y参量如下:gie=1.0mS,goe=110μS,Cie=400pF,Coe=62pF,yfe=28∠340°mS,yre=2.5∠290°μS。 试计算: (1)谐振电压放大倍数|Kv0|; (2)通频带; (3)回路电容C; (4)回路插入...
【单选题】为保证顺利泄水和避免墙外水流倒灌,周围应设置( )。
A.
粗粒料反滤层
B.
细料反滤层
C.
粗料隔离层
D.
细料隔离层
【简答题】ABC 分析法又称排列图法
【简答题】已知某电容器的电容C=0.159μF,接在电源电压U=100V的交流电路中,求f=1000Hz时的无功功率。
【单选题】Mr.Smith will pay a visit to Beijing this autumn. ____ we will enjoy the OLympic s in 2008.
A.
where
B.
when
C.
which
D.
how
【单选题】Mr. Smith will pay a visit to Beijing this autumn, ____ we will enjoy the Olympic s in 2008.
A.
where
B.
when
C.
which
D.
that
【判断题】ABC分类法又称重点管理法或ABC分析法。( )
A.
正确
B.
错误
【单选题】Why will Google give investment?
A.
to help small and medium size businesses grow and reduce poverty
B.
to improve public services
C.
to help two climate change programs
D.
All of the above are right
【单选题】Mr. Smith will pay a visit to Beijing this autumn, ________ we will enjoy the Olympic s in 2008.
A.
where
B.
when
C.
which
D.
how
【单选题】Mr. Smith will pay a visit to Beijing , ________ we will enjoy the Olympic s .
A.
where
B.
when
C.
which
D.
how
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