题目内容
（请给出正确答案）
[主观题]
The word "drowsy" in the last paragraph means ______.A．sickB．stand upC．asleepD．a little sl
The word "drowsy" in the last paragraph means ______.
A．sick
B．stand up
C．asleep
D．a little sleepy
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GB 17820《天然气》的气质标准规定Ⅰ类气体中硫化氢的含量应小于或等于()mg/m3.
A.6
B.20
C.30
D.10
