扑尔敏抗过敏的原理是()。
A.稳定肥大细胞
B.松弛平滑肌
C.促IgE合成转变为IgG合成
D.灭活组胺
E.拮抗组胺
参考答案:E
根据句意及首字母补全在本课中出现的单词。
1. You can see the school in the b_____ left corner.
2. There is a light a ______ the teacher’s desk.
3. They are going to the shopping c_______.
4. We can find a movie t______ there.
5. A b______ is for your money.
开车前把钩工必须检查连接车数,超过规定时,()发出开车信号。
A、严禁
B、可以