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【单选题】
浓度为 1mol·kg -1 的 CuSO 4 溶液的离子强度 I 1 ,浓度为 1mol·kg -1 的 NaCl 溶液的离子强度 I 2 ,那么 I 1 与 I 2 的关系为( )。A.
I 1 =½ I 2
B.
I 1 = I 2
C.
I 1 =4 I 2
D.
I 1 =2 I 2
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举一反三
【单选题】What illusion, if any, can rain on the windscreen create?
A.
Does not cause illusions,
B.
Lower than actual.
C.
Higher than actual.
【单选题】What is an illusion?
A.
It is a sensory misperception or misconception.
B.
A fixed, false idea
C.
It is when you see, hear, feel or taste something that is not really there.
D.
It is verbal aggression
【单选题】They will risk almost anything in order to maintain the illusion that they are cool, composed and in control. What is the meaning of “illusion”
A.
知觉.
B.
本能.
C.
想象
D.
错觉
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