已知命题p：m、n为直线，α为平面，若m∥n，n⊂α，则m∥α；命题q：若a＞b，则ac＞bc，则下列命题为真命题的是（ ）
A．p或q
B．¬p或q
C．¬p且q
D．p且q
对于p，根据直线和平面平行的判定定理：如果平面一条直线与平面内一条直线平行，那么直线和平面就平行，再看题意没有说明直线m在平面α外，得到命题p为假命题，
对于q，由于c的符号没有确定，如果c＜0，那么ac＞bc，得到命题q为假命题，
命题p、q均为假命题，所以¬p或q是真命题，其它为假命题
故选B．
把下列单词填入每个句子的空白处（注意所填单词的形式变化）：
1 A group of Frenchmen and _________ are visiting Window to the World. 2 Please wait in line. Everyone will get his ________. 3 The doorknob (门把手) has come _________. Who will fix it? 4 Don’t always stay indoors. You’d better go __________ for fun time. 5 I once studied some Japanese at college, but I’m afraid that I’ve __________ forgotton it now. 6 Don’t scold him. After all, he is only a __________. 7 __________ often follows lightning. 8 People say that __________ is second nature. 9 China is going through good economic __________ these years. 10 Since you have question, why not turn to him for some __________? 11 My child spends most of the time playing online games. It really _________ me. 12 ___________ well with others is considered a kind of ability. 13 Seeing mother smiling at me among the audience, I felt _________ on the stage. 14 No one knew the __________ why he was absent from class a second time. 15 Seeing the famous film star appearing, all the fans became _________. 16 Do you know when President George Bush came into _________ ? 17 I __________ from a bad cold the other day. It took me days to get rid of it. 18 Only a few years after graduation my sister became the chief _________ with China Daily. 19 Can you design a ____________ to find out what kinds of friends your classmates like to make? 20 He is your father. How __________ you say to him like that? 21 Little Peter always lies to others. His classamtes won’t _________ him anymore. 22 Mrs Wang wrote on the blackboard: No _________ in exams! 23 Mary got very unhappy, for other friends __________ her at the party. 24 I got 90 __________ in the final English exam. 25 Before going shopping you’d better make a _______of what you are going to buy. |