根据建植草坪的质量要求，各类草坪的覆盖度应达到( )。
A．60%B．75%C．85%D．95%
参考答案：D
用所给单词的适当形式填空。
1. Are you good at _____ (draw) pictures?
2. Beijing is one of the biggest _____ (city) in China.
3. I _____ (learn) English for five years.
4. I hope _____ (finish) the work on time.
5. He is a good _____ (paint).
治疗胆绞痛应首选
A．吗啡B．阿托品C．哌替啶+阿托品D．阿司匹林E．罗通定
