问题
选择题
有理数a,b 满足a>0,b<0,|a|<|b|,则a ,b ,-a ,-b的大小顺序是[ ]
A.-a<b<a<-b
B.b<-a<a<-b
C.-a<-b<b<a
D.b<-a<-b<a
答案
答案:B
有理数a,b 满足a>0,b<0,|a|<|b|,则a ,b ,-a ,-b的大小顺序是[ ]
A.-a<b<a<-b
B.b<-a<a<-b
C.-a<-b<b<a
D.b<-a<-b<a
答案:B
从方框中选择词组或表达,并用其正确形式完成句子。 | |
—It's on the desk. 2.I like playing ping-pong, and I have ____ ping-pong balls. 3.—What's her ____? —Miller. 4.—Do you know the phone number of Li Hong? —Yes.You can ___ Li Hong ___ 253-8597. 5. _____ your books.I like them very much (非常). |