带式输送机对各类制动器的制动减加速度的要求是0.5~1m/s。()
参考答案:错
—Can you anything strange?
—It like a small mouse. [ ]
A. listen, sounds
B. hear, listens
C. hear, sounds
D. sound, hears
药品生产企业必须具有哪些文件?