命题“若p则q”及其逆命题,否命题,逆否命题中真命题的个数可能是( ) A.1

题型:选择题

问题:

命题“若p则q”及其逆命题,否命题,逆否命题中真命题的个数可能是(  )

A.1

B.2

C.3

D.都有可能

考点:真命题、假命题
题型:选择题
书面表达。
假如你叫刘林,你美国的笔友Mike,给你发来e-mail。请仔细阅读他的e-mail,在回复中回答他的问题,不少于50个词。
收件人(To):liulin05@sina.com
抄送(Cc):None
主题(Subject):Festivals
       Hi, Liu Lin. Thank you for your Christmas card. It's very beautiful. We had a wonderful Christmas. On Christmas Eve, we put up a Christmas tree in the sitting room and hung stockings at the head of our
beds before we went to bed. We found many presents in the stockings the next morning. On Christmas
Day the whole family got together and we had a big dinner. Everyone was very happy. Christmas is the
biggest festival in the western world. Which is the most important festival in China? How do you
celebrate it? What is the traditional food for the dinner? I'm interested in that festival…
                                                                                                                                 Best wishes! 
                                                                                                                                 Mike

收件人(To):PJmike@hotmail.com
抄送(Cc):None
主题(Subject):Re: Festivals
Hello, Mike.
                                                                                                                                                     
                                                                                                                                                     
                                                                                                                                                     
                                                                                                                                 Best wishes!
                                                                                                                                 Liu Lin

题型:选择题

对特发性肺纤维化X线表现以下哪项正确()

A.双肺斑片阴影

B.双肺纹理增粗

C.广泛的颗粒或网点状阴影或小结节影

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隧道施工监控量测的初始读数,应在开挖循环施工的()h内,并在下一循环开始前取得。

A.15

B.18

C.20

D.24

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A.1个月

B.2个月

C.3个月

D.6个月

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A.保持党同人民群众的血肉联系

B.改革和完善党的领导体制和工作机制

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