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【简答题】
证明:(A∪B)-B=A-AB= B=A-B
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举一反三
【单选题】急性心肌梗死患者最早出现和最突出的症状是
A.
剧烈而持久的胸骨后疼痛
B.
心力衰竭
C.
胃肠道反应
D.
心源性休克
E.
发热
【单选题】The paper by Dr. Just and Dr. Minshew is meant to examine ______.
A.
the functions of different regions of the brain
B.
the differences of autism from other disorders
C.
the brains for the origins of autism
D.
the roles of Broca's area and Wernicke's area
【判断题】【3判断】a++ 和 ++a是C语言中的自增运算符,使用时尽量作为一个语句使用,独占一行,避免作为表达式存在,以免发生不易察觉的错误
A.
正确
B.
错误
【单选题】多数急性心肌梗死病人最早出现和最突出的症状是
A.
剧烈和持久的胸骨后疼痛
B.
心源性休克
C.
心律失常
D.
胃肠道反应
E.
心力衰竭
【简答题】A.Ask Dr. Smith to call the library. B.Ask Dr. Smith to alter his decision. C.Get Dr. Smith's written permission. D.Get the book directly from Dr. Smith.
【单选题】以下叙述中正确的是
A.
可以在程序中由用户指定任意一个函数作为主函数,程序将从此开始执行
B.
C语言程序将从源程序中第一个函数开始执行
C.
main的各种大小写拼写形式都可以作为主函数名,如:MAIN,Main等
D.
C语言规定必须用main作为主函数名,程序将从此开始执行
【单选题】典型的急性心肌梗死患者最早出现和最突出的症状是
A.
剧烈而持久的胸骨后疼痛
B.
胃肠道反应
C.
心律失常
D.
心源性休克
E.
心力衰竭
【单选题】The authors attitude toward Dr. Schweitzer and Dr. Goodwins speculation on the possibility of DNA preservation is
A.
skeptical.
B.
supportive.
C.
indifferent.
D.
optimistic.
【单选题】Dr. Emmanuel Nicholas Abaka, a language specialist at the University of Education, Winneba, has said that indigenous languages are the best tools the nation could use to hasten her socio-economic deve...
A.
impede
B.
accelerate
C.
strengthen
D.
administer
【单选题】Dr. Emmanuel Nicholas Abaka, a language specialist at the University of Education, Winneba, has said that indigenous languages are the best tools the nation could use to hasten her socio-economic dev...
A.
strengthen
B.
administer
C.
accelerate
D.
impede
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