听力原文:M: Hi, Carla! You're looking better. It's nice to have you back.
W: Thanks. I have missed so many classes these days. I just hope I can catch up on all the work I've missed.
Q: What does the woman imply?
(14)
A.She missed her friends.
B.She thinks she's catching another cold.
C.She likes tomato sauce on everything she eats.
D.has a lot of work to make up.
第9题
在Ⅰ型超敏反应中发挥重要作用的抗体类型是
A、IgG
B、IgA
C、IgM
D、IgE
E、IgD
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