含硫量超过20mg／m3的天然气，需要净化处理才能达到管输标准的天然气称为酸性天然气。
参考答案：对
根据句意及汉语提示,在空白处写出单词或固定短语的正确形式。
1. Many girls like to wear ___________ ( 牛仔裤).
2. Swimming and riding are Bob's __________ ( 兴趣).
3. This is a ___________ ( 特别的) party for you. Do you like it?
4. Li Zhe ___________ ( 上课) at school last Saturday.
5. This pair of jeans ___________ ( 由……制成) cotton.
麻黄汤中桂枝的作用（）
A.透达营卫，解肌发表，温经散寒
B.调和营卫，通经活络
C.发表散寒，活血通络
D.温化痰饮
E.温通心阳，活血化瘀
