皮皮学，免费搜题
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【多选题】
心肌的生理特性包括A.
兴奋性
B.
传导性
C.
自律性
D.
收缩性
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】- Hi, welcome back! Have a nice trip? - ____________.
A.
Oh, fantastic! Fresh air, and sunshine every day
B.
Come on, I've got lots of fun
C.
By the way, I don't like Saturdays
D.
Well, I'll look forward to your phone call
【单选题】听力原文：M: Hi Melissa! Welcome back! Did you have a good time in Peru? W: It was absolutely breathtaking. By the way, did you receive a copy of my final paper? M: Yes, it was very good. I want to congrat...
A.
She is an international student.
B.
It's her last semester in school.
C.
She has an internship position.
D.
She didn't feel secured in Peru.
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