do you speak in England?[ ]
A. Which
B. What
C. What's
答案:B
表示比y的9倍少2的式子是( )
A.y+9-2
B.9y+2
C.9y-2
D.y÷9-2
心气虚的症状可见心动减退,心悸,怔忡,脉虚无力。