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问题
单项选择题 A1/A2型题
肺炎支原体主要引起下列何种疾病？（）
A.沙眼
B.肠炎
C.肺炎
D.关节炎
E.肿瘤
答案
参考答案：
C
选择题
— I'm sorry, but I don't quite follow you. Did you say you wanted to return on September 20?
— Sorry, I _____ myself clear. We want to return on October 20.
A. hadn't made
B. wouldn't make
C. don't make
D. haven't made
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单项选择题
( )是指合同当事人双方权利和义务共同指向的事物。
A．对象
B．主体
C．标的
D．质量
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