Do you know how popcorn at home? [ ]
A. make
B. to make
C. do
D. to do
答案：B
Two days isn't enough for me to finish the work．I need _______ day．[ ]
A．other
B．the third
C．the other
D．a third
患儿男，生后2天，出生体重为2400g。因吸入性肺炎入院，入院时患儿呼吸急促，口唇稍发绀。即置于辐射保暖床上抢救。
该患儿吸氧的流量应选择每分钟为（）
A.1L
B.2L
C.3L
D.4L
E.5L
