麻醉前用药一般在麻醉前2小时肌内注射给药。
参考答案:错
享有天下“神品”之称的瓷器是()。
A.宜兴紫砂器
B.淄博美术陶瓷
C.景德镇名瓷
D.德化白瓷塑
The computer was one of the greatest _ in the 20th century. [ ]
A. invent
B. inventing
C. inventions
D. invention