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【单选题】
烧杯中含石蕊的氢氧化钠溶液.逐滴加入稀盐酸至过量,烧杯中溶液颜色变化的顺序是( )
A.
紫色一一红色一一蓝色
B.
蓝色一一紫色一一红色
C.
蓝色一一红色一一紫色
D.
紫色一一蓝色一一红色
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参考答案:
举一反三
【单选题】John plays the piano _____, if not better than, David. But he never shows off in public.
A.
as well
B.
as well as
C.
so well
D.
so well as
查看完整题目与答案
【单选题】一Why is John so poor at his lessons? 一He never studies ,he plays computer games all day
A.
However
B.
Except
C.
Instead
D.
Anyway
查看完整题目与答案
【简答题】—Is the man our sales-manager? —No,it _________ not be him.He never plays cards. A.must B.can C.will D.may
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【单选题】自由落水檐口的出挑长度一般为 ()
A.
200~300mm
B.
250~400mm
C.
350~500mm
D.
300~450mm
查看完整题目与答案
【单选题】He never plays sports or does outdoor activities with his family.
A.
很少
B.
经常
C.
从不
D.
偶尔
查看完整题目与答案
【判断题】He never plays soccer on Sunday.
A.
正确
B.
错误
查看完整题目与答案
【单选题】(单选)自由落水檐口的出挑长度一般为( )。
A.
200~300mm
B.
250~400mm
C.
350~500mm
D.
300~450mm
查看完整题目与答案
【单选题】Faced with a bill for $10,000,________.
A.
an extra job has been given to John
B.
the boss has given John an extra job
C.
an extra job has been taken
D.
John has taken an extra job
查看完整题目与答案
【单选题】有季节性升高,并以儿童多见的传染病,其传播途径是()。
A.
空气
B.
水
C.
食物
D.
接触
E.
垂直传播
查看完整题目与答案
【判断题】某真核生物基因的cDNA和DNA的差别在于DNA无内含子序列。
A.
正确
B.
错误
查看完整题目与答案
相关题目:
【单选题】John plays the piano _____, if not better than, David. But he never shows off in public.
A.
as well
B.
as well as
C.
so well
D.
so well as
查看完整题目与答案
【单选题】一Why is John so poor at his lessons? 一He never studies ,he plays computer games all day
A.
However
B.
Except
C.
Instead
D.
Anyway
查看完整题目与答案
【简答题】—Is the man our sales-manager? —No,it _________ not be him.He never plays cards. A.must B.can C.will D.may
查看完整题目与答案
【单选题】自由落水檐口的出挑长度一般为 ()
A.
200~300mm
B.
250~400mm
C.
350~500mm
D.
300~450mm
查看完整题目与答案
【单选题】He never plays sports or does outdoor activities with his family.
A.
很少
B.
经常
C.
从不
D.
偶尔
查看完整题目与答案
【判断题】He never plays soccer on Sunday.
A.
正确
B.
错误
查看完整题目与答案
【单选题】(单选)自由落水檐口的出挑长度一般为( )。
A.
200~300mm
B.
250~400mm
C.
350~500mm
D.
300~450mm
查看完整题目与答案
【单选题】Faced with a bill for $10,000,________.
A.
an extra job has been given to John
B.
the boss has given John an extra job
C.
an extra job has been taken
D.
John has taken an extra job
查看完整题目与答案
【单选题】有季节性升高,并以儿童多见的传染病,其传播途径是()。
A.
空气
B.
水
C.
食物
D.
接触
E.
垂直传播
查看完整题目与答案
【判断题】某真核生物基因的cDNA和DNA的差别在于DNA无内含子序列。
A.
正确
B.
错误
查看完整题目与答案
参考解析:
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