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【单选题】
脓胸最常继发于
A.
支气管异物堵塞
B.
支气管肺癌
C.
上呼吸道感染
D.
肺大疱破裂
E.
肺部感染
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参考答案:
举一反三
【简答题】阅读理解。 The Fourth '21th Century Cup' National English Speaking Competition is to be held in Shanghai. Organizers : China Daily and Shanghai Broadcasting Network. Co-ordinator : China University English...
【单选题】单自由度体系自由振动的振幅取决于( )。
A.
初位移
B.
初速度
C.
初位移、初速度与质量
D.
初位移、初速度与自振频率
【简答题】三相异步电动机的三相定子绕组通以 ,则会产生 。
【多选题】三相异步电动机的三相定子绕组通以 ,则会产生 。
A.
三相交流电
B.
旋转磁场
【单选题】The Fourth '21 th Century Cup' National English Speaking Competition is to be held in Shanghai. Organizers: China Daily and Shanghai Broadcasting Network. Co-ordinater: China University English Speaki...
A.
to invite you to take part in the competition
B.
to tell you some information of the competition
C.
to help to improve your spoken English
D.
to show you how to win the competition
【判断题】“21 Century Cup” English Speaking Competition is sponsored by 21st Century.
A.
正确
B.
错误
【单选题】在顺相序三相交流电源中,设 A 相电流为 i A =Imsinωt A ,则 i B 为( ) A 。
A.
Imsin(ωt -240°)
B.
Imsin ωt
C.
Imsin(ωt -120°)
D.
Imsin(ωt +120°)
【简答题】The Fourth “21st Century Cup” National English Speaking Competition is to be held in Shanghai. Organizers: China Daily and Shanghai Broadcasting Network. Co-ordinater: China University English Speakin...
【单选题】“21 Century Cup” English Speaking Competition i s sponsored by 21 st Century.
A.
TRUE
B.
FALSE
【判断题】在校大学生即便具备了我国婚姻法所规定的的结婚条件,并且双方都有结婚成家的强烈愿望,也要对结婚成家持谨慎、理性的态度。
A.
正确
B.
错误
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