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【单选题】
意大利电影《美丽人生》是一部反映()的电影A.
爱情
B.
二战和集中营
C.
家庭伦理
D.
人生价值
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举一反三
【单选题】I want to be __________ with Mary in a __________ house in the field.
A.
lone, alone
B.
alone, lone
C.
lone, lone
D.
alone, alone
【单选题】下列各组混合物的分离或提纯方法不正确的是 [ ]
A.
用过滤的方法分离Fe(OH) 3 和FeCl 3 溶液的混合物
B.
用结晶法提纯NaCl和KNO 3 混合物中的KNO 3
C.
用蒸馏法分离乙醇和水的混合物
D.
用加热法分离碘和氯化铵的混合物
【简答题】()是分离液体均相混合物或液态均相气体混合物的操作。
【单选题】Many a young person tells me he wants to be a writer. I always encourage such people, but I also explain that there's a big difference between 'being a writer' and writ-ing. In most cases these indivi...
A.
warn young people of the hardships that a successful writer has to experience
B.
advise young people to give uptheir idea of becoming a professional writer
C.
show young people it's unrealistic for a writer to pursue wealth and fame
D.
encourage young people to pursue a writing career
【简答题】lone alone a. I want to be _____________ with Mary. b. There is a _____________ house in the field.
【简答题】自由基连锁反应分为链引发、链传递()三个阶段。 A链缩合 B链终止 C链增长 D链裂解
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