一侧头顶部出血将()压在耳前的颅骨上面。
A.颞浅动脉
B.颈动脉
C.面动脉
D.桡动脉
参考答案:A
—It seems that we never see the advertisement on cigarettes on TV.
—Absolutely right. There is a total ______ on cigarette advertising in our country. [ ]
A. number
B. cost
C. failure
D. ban
在照度为10lx的房间里,增加1lx的照度刚能察觉出变化;在另一个照度水平为500lx的房间里,需要增加()lx的照度才能刚刚察出有照度的变化。
A、2
B、5
C、10
D、50