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【单选题】
一个由气相变为凝聚相的化学反应在恒温恒容下自发进行,则下列各组答案中哪一个是正确的:A.
ΔS体 > 0, ΔS环 < 0
B.
ΔS体 < 0, ΔS环> 0
C.
ΔS体 < 0, ΔS环=0
D.
ΔS体 > 0, ΔS环 = 0
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举一反三
【单选题】They _____ her to the party, so she was very happy. [ ]
A.
invite
B.
invited
C.
will invite
D.
are inviting
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【简答题】编程1.定义一个点类,生成对象,将点的坐标显示在屏幕上:
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【单选题】On January 1, 20X7, Laut Company’s work-in-progress account had a balance of $36,000. During the year, direct materials costing $70,000 were placed into production. Direct labour cost for the year was...
A.
$16,000
B.
$26,000
C.
$30,000
D.
$36,000
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