问题
单项选择题
色甘酸二钠预防哮喘发作的机制为( )
A.稳定肥大细胞膜,阻止其释放过敏介质
B.直接对抗组胺等过敏介质
C.具有较强的抗炎作用
D.扩张支气管
答案
参考答案:A
色甘酸二钠预防哮喘发作的机制为( )
A.稳定肥大细胞膜,阻止其释放过敏介质
B.直接对抗组胺等过敏介质
C.具有较强的抗炎作用
D.扩张支气管
参考答案:A
Jack is a high school student. He is seventeen years old. He is in Grade two now. he had a bad stomachache three days ago. He went to see the doctor. The doctor gave him a bottle of medicine. Here are the words on the bottle: Stomachache medicine You must shake(摇晃) the bottle before you take it. You must take it three times a day. You should take it after meals.
根据短文内容,选择正确答案。 小题1: Jack should take the medicine __________.
小题2: Jack should take ______of the medicine a day.
小题3: Jack should ___________ before taking the medicine.
小题4: Children can take the medicine when they’re ______ years old.
小题5: Jack _______ the medicine after October 31,2009.
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