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【单选题】
某铅酸蓄电池型号为6—QAW—65D，其标准电压为（）V，额定容量为（）Ah。A.
6；65
B.
18；65
C.
12；65
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反馈参考答案：
举一反三
【简答题】大气污染的种类及主要来源有哪些?
【单选题】听力原文：W: Goodbye, John. And please send my regards to your parents. M: Sure I will. Thank you very much. Bye. What did the woman ask the man to do?
A.
To give her some presents.
B.
To give her his parents.
C.
To give her best wishes to his parents.
【单选题】---Please send my best wishes to your family. ---______!
A.
You too
B.
Thank you
C.
Me too
D.
The same to you
【单选题】听力原文：W: Goodbye, John. And please send my regards to your parents. M: Sure I will. Thank you very much. Bye. What did the woman ask the man to do?
A.
To give her some presents.
B.
To give some presents to his parents.
C.
To give her best wishes to his parents.
【单选题】Please send ______ my best wishes when you go to visit your grandparents.
A.
their
B.
they
C.
them
D.
theirs
【单选题】筛检或诊断试验的可靠性是指:
A.
观察者对结果判断的一致程度
B.
重复多次试验获得相同结果的稳定程度
C.
受试者的测定值与实际值的符合程度
D.
试验结果中真正有无疾病的概率
E.
以上均不正确
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