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【单选题】
在中文Windows中,为了实现与半角状态之间的切换,应按的键是( )。
A.
Ctrl十空格
B.
Shift+空格
C.
Shift十Ctrl
D.
Ctrl十F9
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皮皮学刷刷变学霸
举一反三
【单选题】The author most probably believes that the antigen-antibody theory of immunological reaction______.
A.
is wrong
B.
was accepted without evidence
C.
is unverifiable
D.
is a partial explanation
【单选题】出站方向区间内有瞭望不良的地形或有()(站名表由铁路局公布),禁止跟踪出站调车,
A.
下坡道
B.
岔线
C.
长大下坡道
D.
长大上坡道
【单选题】出站方向区间内有()的地形或有长大上坡道禁止跟踪出站调车。
A.
瞭望不良
B.
桥梁
C.
平地
D.
未设信号
【简答题】给左边的答句选择正确的问句。 (     ) 1. I'm very well. (     ) 2. By train. (     )  3. At six in the morning. (     ) 4. A king or a queen. (     ) 5. No, you may not. (     ) 6. Yes, it is. A. When do you arrive ...
【简答题】曲线养护维修的类型有?
【单选题】The word 'they' in the passage refers to
A.
scientists.
B.
displays.
C.
reactions.
D.
elephants.
【判断题】在这些综合性服务中,食、住、行具有相对的 稳定性,其经济收人是有限度的.而旅游购 物在旅游需求中的弹性较大。
A.
正确
B.
错误
【单选题】旅游购物在旅游( )中的弹性较大
A.
消费
B.
需求
C.
供给
D.
效益
【单选题】The best choice for the title of the passage would be ______.
A.
The Thirties in Art. Reaction and Rebellion
B.
America in the Thirties: A Changing Time
C.
Thomas Hart Benton and Regionalism
D.
American Art. Appeal and Diversity
【单选题】It was difficult to guess what her _____ to the news would be. [     ]
A.
impression
B.
comment
C.
reaction
D.
opinion
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