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问题
单项选择题
国家标准规定的汽油额定零售损耗率为().
A.0.3%
B.0.29%
C.0.2%
D.0.08%
答案
参考答案:B
补全对话,情景问答
给下列的问句选择合适的答语。
( ) 1. What's his name?
( ) 2. How are you?
( ) 3. Where is your book?
( ) 4. How many books do you have?
A. Three.
B. Fine, thanks.
C. His name is Li Ming.
D. On the desk.
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多项选择题
用浸取法从油菜籽中提取菜油,宜采用( )作溶剂。
A.稀碱溶液 (C)易挥发的
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