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【单选题】
判断字符型变量c1是否为小写字母的正确表为( )A.
'a'<=c1<='z'
B.
(c1>='A')&&(c1
C.
('a'>=c1)||('z'<=c1)
D.
(c1>='a')&&(c1<='z')
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反馈参考答案：
举一反三
【单选题】Luke practices law without an attorney's license. The state requires a license to protect the public from unauthorized practitioners. Clark hires Luke to handle a legal matter. Luke cannot enforce the...
A.
it is illegal.
B.
Luke has no contractual capacity.
C.
Luke did not give consideration.
D.
none of the above.
【简答题】试述雷诺准数的物理意义及判断流动类型？
【单选题】You'd better listen to the teacher carefully and take ____ when it is neccessary.
A.
notes
B.
tickets
C.
signs
D.
words
【单选题】Why did Ed and Luke fall out?
A.
Luke only ordered one MP3 player.
B.
Ed only ordered one MP3 player.
C.
Luke wasn’t speaking to Ed.
【简答题】Listen to the conversation and fill in the missing sentences. You'd better listen to it no more than THREE times.
【简答题】Listen to the conversation again. Choose the correct answer. You'd better listen to it for only once .
【单选题】why did Ed and Luke fall out?
A.
Luke only ordered one MP3 player
B.
Ed only ordered one Mp3 player
C.
Luke wasn’t speaking to Ed
【单选题】You'd better listen to the teacher carefully and take _________ when it is necessary.
A.
notes
B.
tickets
C.
signs
D.
words
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