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【判断题】
我国把安全电压的额定值分为42V、36V、24V、12V四个等级。A.
正确
B.
错误
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【简答题】供给规律是什么
【单选题】S1:What is his name?S2:His name is Leon Chan.S1:Where is he from?S2:He is from the Philippines.S1:What is his date of birth?S2:His date of birth is the 4th of June 1976.S1:Is he married?S2:Yes, but he...
A.
He is the cook.
B.
He is the Bosun.
C.
He is a rating.
D.
He is a motormam.
【单选题】S1:What is his name? S2:His name is Hanford Loo. S1:What is his date of birth? S2:His date of birth is the 17th of April 1973. S1:Is he married? S2:Yes,he is married. S1:What is the name o...
A.
He is the First Engineer.
B.
He is the Second Engineer.
C.
He is the Third Engineer.
D.
He is the Fourth Engineer.
【简答题】畜产品的供给规律是什么?
【简答题】什么是供给规律？
【简答题】听下面一段对话，回答第1-3题。 1. Why is the man going to Shanghai? A. On business. B. To get married. C. To attend a wedding. 2. How old is the man now? A. 27. B. 28. C. 30. 3. What can we learn about the man from...
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