图示等直径水管,AA为过流断面,BB为水平面,1、2、3、4各点的运动参数有以下关系()。
A.A
B.B
C.C
D.D
参考答案:A
单词填空(6分)
小题1:It is my _________ / 'pleʒə/ to help you.
小题2:The population of our country is ______________/ɪn'kri:sɪŋ/ very fast.
小题3:Mr Black has ____________ /træns'leɪtɪd/ many Chinese books into English.
小题4:The ___________['tʃə:tʃɪz] in the USA are very famous.
小题5:I want to have my watch ___________ / rɪ'peəd/ because it doesn’t work .
小题6:The young people often hand out _______________ in the street.
[əd'və:tɪsmənts]
赤麟散功效与作用