颅脑外伤病人最基本的监护指标是（）。
A.呼吸
B.血压
C.脉搏
D.颅内压
E.氧分压
参考答案：D
小数除法的商都小于被除数．______．
— The 2011 College Entrance Examination has just been over!
— Yes, it will be about two years _____we attend it.
[ ]
A. until
B. before
C. after
D. since
