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【单选题】
判断char型变量ch是否为大写字母的正确表达式是A.
‘A’<=ch
B.
(‘A’<=ch)and(‘z’>=ch)
C.
(ch>=‘A’)&(ch<=‘Z’)
D.
(ch>=‘A’)&&(ch<=‘Z’)
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举一反三
【简答题】A.To raise a dog at home. B.To note down things to be grateful for. C.To chat with friends. D.To listen to stories about gratitude.
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【单选题】盐酸普鲁卡因、盐酸丁卡因、盐酸利多卡因、盐酸去氧肾上腺素、盐酸异丙肾上腺素等药物的共同鉴别反应是
A.
芳香第一胺的反应
B.
苯环的取代反应
C.
脂肪胺中氮原子的弱碱性反应
D.
水解反应
E.
氯化物的反应
【单选题】To raise awareness of your company and products, we may ask you to provide information to participate in certain voluntary promotions, surveys, or contests.
A.
prematurely
B.
marginally
C.
occasionally
D.
uncommonly
【单选题】A city wants to raise revenues to build a new municipal swimming pool next year. The mayor suggests that the city raise the price of admission to the current municipal pools this year to raise revenu...
A.
the mayor
B.
the city manager
C.
The answer depends on the price elasticity of demand.
D.
The answer depends on the costs of construction of the new municipal swimming pool.
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