麻醉时最先受到影响的功能是()
A.心功能
B.呼吸功能
C.肝功能
D.肾脏功能
E.脾功能
参考答案:B
He has never been late for class, _____ he?[ ]
A. is
B. isn't
C. has
D. hasn't
一般情况下,规划设计费为建安费的()左右。
A.1%
B.1.5%
C.2%
D.3%