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【单选题】
食醋总酸度以醋酸的含量来表示,一般指每100mL食醋中含有醋酸的质量,单位: g · 100mL -1 。现在用浓度为 0.1000mol · L -1 NaOH溶液标定25.00 mL 稀释了10倍的食醋,终点时消耗 NaOH溶液体积为17.08mL,问食醋总酸度为多少 ? ( M(HAc) = 60 )
A.
0.04099 g · 100mL -1
B.
0.4099 g · 100mL -1
C.
4.099 g · 100mL -1
D.
3.099 g · 100mL -1
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【单选题】The mansion built here last year is another ( ) palace in our city.
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【简答题】The baby is sleeping. Would you mind ( ) (turn) off the radio?
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【单选题】Would you mind _ down the radio? [     ]
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【单选题】Alexs mansion was named after______.
A.
the house where he was born
B.
the football team that he leads
C.
the football team that he favors
D.
the factory where his father once worked
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【判断题】除增四度、减五度以外的所有增、减音程和倍增、倍減音程。
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【单选题】A: Would you mind if I turn on the TV? B: __ Because I'm doing my homework.
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A.
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B.
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C.
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A.
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B.
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