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【单选题】
有学生表,教师表(TNO,TNAME,......),查询不与教师同名的学生记录A.
SELECT DISTINCT Sname FROM Student WHERE Sname not IN (SELECT Tname FROM Teacher);
B.
Select DISTINCT Sname from Student except select Tname from Tname
C.
SELECT DISTINCT Sname FROM Student WHERE Sname!=(SELECT Tname FROM Teacher);
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皮皮学刷刷变学霸
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【简答题】People say time is relative．But relative to what．I do know that sometimes time“seems”to be moving slower．Remember Christmas Eve when you were a child? It was the longest night of the year．It lasted fo...
【简答题】It is high time that we (put) ______ an end to this controversy (争论).
【单选题】The phrase "to that end" can be best replaced by ______.
A.
for that purpose
B.
at no time
C.
in the end
D.
by that end
【多选题】U-Plane Latency shows the PING round trip time in the end to end communication。在分析U-Plane Latency时，需要从以下几个方面考虑()
A.
Ping sizes
B.
scheduling mode
C.
radio conditions
D.
UE locations in the cell
【单选题】下列关于酶的抑制剂的描述,哪一种是正确的?
A.
酶的抑制剂中一部分是酶的变性剂
B.
酶的抑制剂只与活性中心上的基团结合
C.
酶的抑制剂均能使反应速度下降
D.
酶的抑制剂都能竞争性地使酶的活性降低
【简答题】Is there an end to this problem in sight? Not any time soon.(翻译)
【单选题】下列关于酶的抑制剂的描述,正确的是( )
A.
酶的抑制剂 就是 酶的变性剂
B.
酶的抑制剂只与活性中心上的基团结合
C.
酶的抑制剂均能使反应速度下降
D.
酶的抑制剂都能竞争性地使酶的活性降低
【单选题】The word ( ) means 'to come to an end in time or effect '.
A.
trespass
B.
tortfeasor
C.
defamation
D.
terminate
【单选题】( )2. Li Hong spent a lot of time on English and ____ she passed the English exam. A. by the end B. in the end C. on the end D. at the end
A.
by the end
B.
in the end
C.
on the end
D.
at the end
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