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【单选题】
对二氟二氯甲烷( CCl 2 F 2 )下列说法正确的是
A.
只有一种结构
B.
有两种同分异构体
C.
属于烃
D.
分子中有极性键和非极性键
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参考答案：
举一反三
【单选题】听力原文：The global steel industry is in a mess. Overcapacity and weak demand have hurt producers. In 2002, 847 million tons of steel was produced, but consumption was only 765 million tons. Steel makers ...
A.
The steel industry still has a bright prospect on a global scene.
B.
Steel consumption in the world registered a drastic cut.
C.
Steel makers are drastically cutting down their production.
D.
Better promotion is needed for improving sales of steel products.
查看完整题目与答案
【判断题】我国红碎茶现行标准中，红碎茶分碎茶、片茶、末茶三个花色。
A.
正确
B.
错误
查看完整题目与答案
【单选题】America's economic recovery remains uncomfortably weak. The latest data show industrial production falling while the trade deficit soars to record levels. To round off a dismal week for economic stati...
A.
It is recovering.
B.
It faces an uncertain future.
C.
It remains depressing.
D.
It shows unreliable signs.
查看完整题目与答案
【多选题】法律义务的特点是( )。
A.
法律义务是历史的
B.
法律义务源于现实需要
C.
法律义务必须依法设定
D.
法律义务不可能发生变化
查看完整题目与答案
【多选题】法律义务的特点是( )
A.
法律义务是历史的
B.
法律义务源于现实需要
C.
法律义务必须依法设定
D.
法律义务可能发生变化
查看完整题目与答案
【单选题】154既可用于瞄准,也可用于测微的是()式侧头
A.
电器接触
B.
非接触
C.
机械接触
D.
液压接触
查看完整题目与答案
【单选题】At prices (4; 12); Harry chooses the bundle (9; 4). At the prices (8; 4); Harry chooses the bundle (2; 9). Is this behavior consistent with the weak axiom of revealed preference?
A.
Yes
B.
No
C.
t depends on his income
D.
We would have to observe a third choice to be able to say.
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【单选题】下列关于法律关系的表述，不能成立的是（ ）
A.
法律关系属于社会关系
B.
法律关系是社会关系产生的前提
C.
没有法律规定就没有法律关系
D.
有些社会关系可以上升为法律关系
查看完整题目与答案
【单选题】烤箱按外形可分为柜式烤箱和（）。
A.
煤气烤箱
B.
转动式烤箱
C.
固定式烤箱
D.
通道式烤箱
查看完整题目与答案
【单选题】听力原文：The global steel industry is in a mess. Overcapacity and weak demand have hurt producers. In 2002, 847 million tons of steel was produced, but consumption was only 765 million tons. Steel makers ...
A.
The steel industry still has a bright prospect on a global scene.
B.
Steel consumption in the word registered a drastic cut.
C.
Steel makers are drastically cutting down their production.
D.
Better promotion is needed for improving sales of steel products.
查看完整题目与答案
相关题目：
【单选题】听力原文：The global steel industry is in a mess. Overcapacity and weak demand have hurt producers. In 2002, 847 million tons of steel was produced, but consumption was only 765 million tons. Steel makers ...
A.
The steel industry still has a bright prospect on a global scene.
B.
Steel consumption in the world registered a drastic cut.
C.
Steel makers are drastically cutting down their production.
D.
Better promotion is needed for improving sales of steel products.
查看完整题目与答案
【判断题】我国红碎茶现行标准中，红碎茶分碎茶、片茶、末茶三个花色。
A.
正确
B.
错误
查看完整题目与答案
【单选题】America's economic recovery remains uncomfortably weak. The latest data show industrial production falling while the trade deficit soars to record levels. To round off a dismal week for economic stati...
A.
It is recovering.
B.
It faces an uncertain future.
C.
It remains depressing.
D.
It shows unreliable signs.
查看完整题目与答案
【多选题】法律义务的特点是( )。
A.
法律义务是历史的
B.
法律义务源于现实需要
C.
法律义务必须依法设定
D.
法律义务不可能发生变化
查看完整题目与答案
【多选题】法律义务的特点是( )
A.
法律义务是历史的
B.
法律义务源于现实需要
C.
法律义务必须依法设定
D.
法律义务可能发生变化
查看完整题目与答案
【单选题】154既可用于瞄准,也可用于测微的是()式侧头
A.
电器接触
B.
非接触
C.
机械接触
D.
液压接触
查看完整题目与答案
【单选题】At prices (4; 12); Harry chooses the bundle (9; 4). At the prices (8; 4); Harry chooses the bundle (2; 9). Is this behavior consistent with the weak axiom of revealed preference?
A.
Yes
B.
No
C.
t depends on his income
D.
We would have to observe a third choice to be able to say.
查看完整题目与答案
【单选题】下列关于法律关系的表述，不能成立的是（ ）
A.
法律关系属于社会关系
B.
法律关系是社会关系产生的前提
C.
没有法律规定就没有法律关系
D.
有些社会关系可以上升为法律关系
查看完整题目与答案
【单选题】烤箱按外形可分为柜式烤箱和（）。
A.
煤气烤箱
B.
转动式烤箱
C.
固定式烤箱
D.
通道式烤箱
查看完整题目与答案
【单选题】听力原文：The global steel industry is in a mess. Overcapacity and weak demand have hurt producers. In 2002, 847 million tons of steel was produced, but consumption was only 765 million tons. Steel makers ...
A.
The steel industry still has a bright prospect on a global scene.
B.
Steel consumption in the word registered a drastic cut.
C.
Steel makers are drastically cutting down their production.
D.
Better promotion is needed for improving sales of steel products.
查看完整题目与答案
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