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【单选题】
处于恒温条件下的一封闭容器中有二杯液体,A杯为纯水,B杯为蔗糖水溶液。放置足够长时间后则发现()A.
A杯变成空杯,B杯水满后溢出
B.
A杯水减少,B杯水满后不再变化
C.
B杯水减少,A杯水满后不再变化
D.
B杯水干并有蔗糖晶体,A杯水满后溢出
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皮皮学刷刷变学霸
举一反三
【简答题】We keep it to keep the door.
【简答题】We don’t keep winning s _______ we keep playing well. A. because B. unless C. when D. while
【单选题】We don’t keep winning games _______ we keep pla
A.
2. We don’t keep winning games _______ we keep playingwell. （浙江） A.because
B.
unless
C.
when
D.
while
【单选题】Now people can with their friends far away by e–mail, cellphone or letter.
A.
keep on
B.
keep in touch
C.
keep up
【单选题】We now ______ him by writing letters.
A.
keep away from
B.
keep on
C.
keep in touch with
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