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【判断题】
三相变压器当采用组式铁芯磁路系统时,可将绕组接为Y,y连接。
A.
正确
B.
错误
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【单选题】S(S#,sN,,AGE,DEPT) C(C#,CN) SC(S#,C#,GRADE)其中;S#为学号,SN为姓名,为性别,AGE为年龄,.DEPT为系别,C#为课程号, CIg为课程名,GRADE为成绩。检索所有比“王华”年龄大的学生姓名、年龄和性别正确的SELECT语句是 ______。
A.
SELECT SN,AGE, FROM S WHERE AGE>(SELECT AGE FROM:S WHERE SN='王华')
B.
SELECT SN,AGE, FROM S WHERE SN='王华'。
C.
SELECT SN,AGE, FROM S WHERE AGE>(SELECT AGE WHERE SN='王华')
D.
SELECT SN,AGE, FROM S WHERE AGE>王华 AGE
【单选题】以下哪项不是门脉高压的表现:
A.
蜘蛛痣.肝掌
B.
脾大
C.
食管静脉曲张
D.
末梢血象全血细胞减少
E.
腹水
【单选题】For practical purposes, in a series circuit, the source voltage will be dropped across one resistor if it has_____.
A.
half the resistance of the other resistor
B.
a resistance equal to the other
C.
at least ten times the resistance of the other
D.
a partial short circuit
【单选题】For practical purpose ,in a series circuit ,the source voltage will be dropped across one resistor if it has______
A.
half the resistance of the other resistor
B.
a resistance equal to the other
C.
at least ten times the resistance of the other
D.
a partial short circuit
【单选题】以下哪项不是门脉高压的表现
A.
腹水
B.
脾大
C.
侧支循环建立和开放
D.
黄疸
【多选题】汽车行驶的驱动条件是汽车的驱动力应( )或( )行驶阻力之和。
A.
大于
B.
小于
C.
等于
【多选题】发动机防盗系统的解除步骤包括( )。
A.
钥匙码的发射过程
B.
钥匙码接收过程
C.
滚动码的发送过程
D.
发射器钥匙ECU对滚动码的接收判断与发送
【单选题】In a series circuit, the entire source voltage will drop across _____.
A.
the resistor next to the negative terminal
B.
a short circuit
C.
the resistor next to the positive terminal
D.
an open circuit
【单选题】Smilies are series of symbols that _______ in the email text.
A.
pieced together
B.
piece together
C.
are piecing together
D.
are pieced together
【简答题】什么是汽车的驱动力?影响汽车驱动力的因素有哪些?
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