【单选题】S(S#,sN,SEX,AGE,DEPT) C(C#,CN) SC(S#,C#,GRADE)其中;S#为学号,SN为姓名,SEX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,SEX FROM S WHERE AGE>(SELECT AGE FROM:S WHERE SN='王华')
B.
SELECT SN,AGE,SEX FROM S WHERE SN='王华'。
C.
SELECT SN,AGE,SEX FROM S WHERE AGE>(SELECT AGE WHERE SN='王华')
D.
SELECT SN,AGE,SEX FROM S WHERE AGE>王华 AGE
【单选题】For practical purposes, in a simple 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 simple 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
【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。
【单选题】In a simple series circuit, the entire source voltage will drop across _____.
A.
the resistor next to the negative terminal
C.
the resistor next to the positive terminal
【单选题】Smilies are simple series of symbols that _______ in the email text.
【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?