《中药饮片质量标准通则<试行>》的通知规定根茎、藤木类，叶类含药屑、杂质不得超过
A．2%
B．3%
C．0.5%
D．5%
E．1%
参考答案：A
用所给动词的正确形式填空。
1. _______ (take) a bus is much faster than walking.
2. Simon spends a lot of time _______ (practise) playing basketball every day.
3. He with his friends _______ (play) football now in the playground.
4. I will go with you if it _______ (not rain) tomorrow.
5. Can you help me ________ (solve) the problem?
个体绝对繁殖力
