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【单选题】
络合滴定中,若要求 TE%≤0.1%, △ pM=±0.2, 被测离子 M 的浓度为干扰离子 N 浓度的 1/10 ,欲用控制酸度滴定 M, 则要求 △ lgK 应当大于( )A.
5
B.
6
C.
7
D.
8
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【单选题】Dr John Crey took ______ .
A.
five pounds each time
B.
three pounds each time
C.
three pounds each time except the first
【单选题】If the areas of three of the faces of a rectangular solid are 6,10, and 15, what is the volume of the solid ?
A.
30
B.
90
C.
150
D.
300
E.
450
【简答题】What are the three ancient dramas in the world?
【单选题】___ Thursday evening at seven, Dr. Stanley will give a lecture in Bailey Hall on Three Days in China.
A.
In
B.
On
C.
At
D.
From
【单选题】Dr. Johnson is offering a three-hour workshop during______she will share some perspectives on effective time management.
A.
whose
B.
while
C.
whatever
D.
which
【单选题】In mathematics the term 'solid' describes a geometric figure with three dimensions.
A.
angle
B.
shape
C.
D.
equation
【简答题】Dr. Richard, together with his wife and three children, ______ (be) arrive in Beijing this afternoon.
【多选题】The three ancient dramas in the world history are __________.
A.
Greek tragedy and comedy
B.
Shakespeare’s tragedy and comedy
C.
Chinese opera
D.
Indian Sanskrit drama
【多选题】What are named as the world’s three greatest ancient dramas? ( )
A.
Chinese opera.
B.
Ancient Greek play.
C.
Indian Sanskrit drama.
D.
Greek myth.
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