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【单选题】
Kate Green is a nineteen-year-old girl. She is not married, so we call her . [ ]A.
Mrs. Green
B.
Miss Green
C.
Mrs. Kate
D.
Miss Kate
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举一反三
【单选题】The young man didn't know _____ to get married or to wait.
A.
whether
B.
weather
C.
if
D.
that
【简答题】As I was thinking about this later on, I wondered ________ the young man didn't just perform this act of kindness himself.
【简答题】知觉的特性包括
【单选题】The young man didn't know ________ to get married or to wait.
A.
whether
B.
weather
C.
if
D.
That
【单选题】用含有少量Ca2+的蒸馏水配制EDTA溶液,于PH=5.0时,用锌标准溶液标定EDTA溶液的浓度,然后用上述EDTA溶液,于PH=10.0时,滴定试样中Ca2+的含量,对测定结果的影响是()。
A.
基本上无影响
B.
偏高
C.
偏低
D.
不能确定
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