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搜题
【单选题】
线型光纤感温火灾探测系统探测的散射光只要是A.
散射
B.
拉曼散射
C.
散射
D.
漫散射
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反馈参考答案：
举一反三
【简答题】How did Priestley study airs?
【单选题】Mr. Priestley wanted the author to take part in the festival most probably because ______.
A.
the author was the best in class
B.
the author didn't have confidence in himself
C.
the author wasn't good at expressing himself
D.
the author needed to be motivated
【判断题】Priestley thinks he will become more famous if people know what is in his mind when he is sleepless. ()
A.
正确
B.
错误
【判断题】Priestley doesn’t think he has an iron will, and he is not sorry about it.()
A.
正确
B.
错误
【单选题】Priestley argues that man’s life is full of contradictions with ______.
A.
many examples
B.
seriousness
C.
the matter of sleep
【单选题】关于真菌与人类的关系,叙述正确的是
A.
果树、蔬菜的病害都是由真菌引起的
B.
灰指甲和脚气是由真菌引起的
C.
番茄花叶病是由真菌引起的
D.
水稻矮缩病是由真菌引起
【单选题】It was not _____ they came back. [ ]
A.
long before
B.
before long
C.
long time before
D.
long after
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