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【单选题】
套利的存在对期货市场的健康发展起到了非常重要的作用，以下不正确的是()。A.
套利行为有助于期货价格与现货价格、不同期货合约价格之间的合理价差关系的形成
B.
交易者的套利行为，客观上会对相关期货价格产生影响，促使期货合约价格趋于合理
C.
套利行为有助于市场流动性的提高
D.
套利交易起到了市场润滑剂和减震剂的作用
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【简答题】1mol,p=101.325kPa,t=100 C的水蒸汽在恒温恒压下凝结为同温同压下的液态水,则此过程的W=------。
【单选题】Young people often feels that the age of eighteen is the ______.
A.
best time of life
B.
right age to get married
C.
hardest part of life
D.
gateway to happiness
【单选题】在-10°C、101.325kPa下,1mol水凝结成冰的过程中,适用的公式是( )。
A.
ΔU=TΔS
B.
ΔG=ΔH-TΔS
C.
ΔH=TΔS+VΔp
D.
ΔG=0
【单选题】Einstein’s Theory of Relativity is so________ that most of us can not understand it.
A.
controversial
B.
appropriate
C.
abstract
D.
ridiculous
【简答题】5mol 理想气体的始态为 T 1 =25 °C, p 1 =101.325kPa ,体积为 V 1 ,在恒温下反抗恒定外压膨胀至 V 2 =3 V 1 , p ( 环境 ) =0.6 p 1 。求此系统所作的功。
【单选题】The passage tells us that the most probable reason for the death of the mice in Ader's experiment was that______.
A.
the sweetener was poisonous to them
B.
their immune systems had been altered by the mind
C.
they had been weakened physically by the saccharin
D.
they had taken too much sweetener during earlier conditioning
【单选题】在 -10℃、101.325kPa下，1mol水凝结成冰的过程中，下列哪个公式仍适用
A.
∆U = T∆S
B.
∆S = (∆H- ∆G)/T
C.
∆H = T∆S + V∆p
D.
∆GT,p = 0
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