肺炎患儿静脉输液时一般滴注速度每小时每公斤体重应为：()
A．5 ml
B．10 ml
C．15 ml
D．30 ml
E．35 ml
参考答案：A
The little boy who got lost decided to remain ________ she was and wait for her mother.
A．what
B．how
C．who
D．where
本地电话单向传输时间≤多少毫秒？（）
A.11毫秒
B.12毫秒
C.13毫秒
D.14毫秒
