表达FcεRⅠ的细胞是()
A.B细胞
B.T细胞
C.嗜中性粒细胞
D.嗜碱性粒细胞
E.肥大细胞
参考答案:D, E
根据上下文及首字母提示完成短文,每空一词。
Last Sunday afternoon, Nancy w to a bookshop to buy an interesting book a animals.
Suddenly she found a short man stole her purse and ran out of the shop. The man ran f than Nancy.
So she shouted "S thief!" and asked others for help. At last, with the help of a policeman and a woman,
Nancy g her purse back.
甜菜大田生产一般每667㎡播种量在()kg。
A.1.27-1.53
B.1.25-2
C.1.5-3.1
D.4.5-5