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【单选题】
注射破伤风抗毒素的目的是A.
对易感人群进行预防接种
B.
对可疑破伤风患者治疗及紧急预防
C.
杀灭伤口中的破伤风梭菌
D.
主要用于儿童的预防接种
E.
中和与神经细胞结合的破伤风痉挛毒素
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【单选题】听力原文：W: How long have you known Susan? M: I've known her about three years. I met her in the library where we used to read, but now I can only see her on the campus occasionally. Where did Susan often...
A.
In the library.
B.
In the college.
C.
On the campus.
【单选题】How long have you known each other?
A.
A very long time, since I was a kid. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
It is small but beautiful. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
No, we don ’ t. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
No. We live in the same neighborhood . prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
E.
Twice a month. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】______ have you known the city? For five years. [ ]
A.
How long
B.
How often
C.
How many
D.
How much
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