异丙酚的不良反应包括()。
A.低血压和短暂的呼吸抑制
B.给药后的变态反应
C.能抑制插管期的血流动力学反应
D.可使颅内压、眼压下降
E.注射部位疼痛
参考答案:A, B, D, E
填入适当的疑问词或疑问词组。
1. ____________ season do you like best? Fall.
2. ____________ are they? Twenty yuan.
3. ____________ students are there in your class? There are thirty-seven.
4. ____________ do you go to school? I go to school at 8: 00.
5. ____________ do you do on the weekend? I go hiking.
作出小球摆到如图位置时的受力示意图.