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【单选题】
关于热和功，下面的说法中不正确的是A.
功和热只出现于系统状态变化的过程中，仅存在于系统和环境间的界面上
B.
只有在封闭系统发生的过程中，功和热明确的意义
C.
功和热不是能量，而是能量传递的两种形式，可称之为被交换的能量
D.
在封闭系统中发生的过程，若内能不变，则功和热对系统的影响必互相抵消
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【单选题】What is the woman's main concern?
A.
She is worried her husband will spend too much time away from home.
B.
She is afraid her husband will become a fitness freak.
C.
She is concerned about her husband's health.
D.
She is afraid her husband will become a laughingstock.
【简答题】Fog has reduced ______ to under 20 meters and no planes have taken off since early morning.(visible)
【单选题】下列哪组营养素是孕妇最容易缺乏的
A.
能量、蛋白质、钙、铁、锌、叶酸
B.
脂肪、碳水化合物、维生素B2、铜
C.
蛋白质、脂肪、钾、钙
D.
必需氯基酸、必需脂肪酸、维生素B12
E.
能量、钙、维生素A、铁、氟、碘
【单选题】Principle planes will appear as:
A.
normal planes or edges
B.
oblique planes or edges
C.
normal planes or oblique planes
D.
skewed planes or edges
【单选题】下列哪组营养素是孕妇最容易缺乏的( )
A.
能量、蛋白质、钙、铁、锌、叶酸
B.
脂肪、碳水化合物、维生素B2.铜
C.
蛋白质、脂肪、钾、钙
D.
必需氨基酸、必需脂肪酸、维生素B12
E.
能量、钙、维生素A、铁、氟、碘
【简答题】Fog has reduced ________ (visible) to under 20 meters and no planes have taken off since early morning.
【单选题】In the play Who's Afraid of Virginia Woolf? a woman and her husband spend most of their time quarreling.
A.
arguing on small matters
B.
fighting for who is right
C.
gossiping on their neighbors
D.
teasing on each other
【单选题】The author suggests that the wife keep the money while the husband decides how to spend it.
A.
Y
B.
N
C.
NG
【简答题】阅读理解。 One day in early March of 1993,Pauline and Tom Nichter and their 11-year-old son Jason,were shopping for a toy in Buena Park,CA.Suddenly,Panline saw a wallet lying on the floor.When she looked i...
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