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【单选题】
C语言中的标识符只能用字母、数字、下划线以及$组成,且第一个字符_______。A.
必须为字母
B.
必须为下划线
C.
必须为字母或下划线以及$
D.
可以是字母、下划线
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举一反三
【单选题】In a traditional Chinese wedding, the newly married couple(夫妻)are usually _______in red.
A.
worn
B.
had
C.
dressed
D.
put
【单选题】Neither of the novels which popular with us been translated into Chinese. [ ]
A.
are; had
B.
are; has
C.
is; have
D.
is; has
【单选题】The number of foreign students attending Chinese universities rising steadily since1990.
A.
is
B.
are
C.
has been
D.
have been
【单选题】This sound doesn't ______ in Chinese, so it's difficult for the students to pronounce.
A.
happen
B.
occur
C.
come about
D.
take place
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