传染性单核细胞增多症的血清中嗜异性抗体为（）
A.IgM
B.IgG
C.IgA
D.IgE
E.IgD
参考答案：A
13和17这两个数，( )接近10，( )接近20.
根据图示，完成对话。
A: Excuse me. Can you tell me how to get to the bank near here?
B: It's easy. Go 1 Bridge Street and turn 2 . Then walk along 3 Street until you see the post
office. And turn 4 . Go straight and you'll find the bank on the left. It's next to the post office and
5 from the park.
1. _____ 2. _____ 3. _____ 4. _____ 5. _____
