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【单选题】
等温等压下进行的化学反应,其方向由∆rHm和∆rSm共同决定,自发进行的反应应满足下列哪个关系式:A.
∆rSm = ∆rHm/T
B.
∆rSm > ∆rHm/T
C.
∆rSm ≥ ∆rHm/T
D.
∆rSm ≤ ∆rHm/T
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举一反三
【简答题】guiltyA. do something bad B. information in the human body that makes
each person different from others C. a person who saw something happen D. responsible for a crime
【单选题】Whats the purpose of Fredricks talking with Professor Johnson?
A.
To visit Professor Johnson's new office.
B.
To discuss his English achievement.
C.
To express his worries about his classmates.
D.
To show his anxiety on picking up accents.
【单选题】How did the Job Center get to know Johnson?
A.
Johnson phoned them.
B.
Johnson e-mailed them.
C.
Johnson helped them.
D.
Johnson is the Job Center's assistant.
【简答题】保证金交易的优缺点?
【简答题】我国测绘成果基本采用高斯投影(高斯 - 克里格),请问高斯投影的有哪些基本特征?
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