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【多选题】
感烟火灾探测器在格栅吊顶场所的设置，应符合下列规定（）。A.
楼空面积与总面积的比例不大于15%时，探测器应设置在吊顶下方
B.
镂空面积与总面积的比例大于30%时，探测器应设置在吊顶上方
C.
镂空面积与总面积的比例为15%~30%时，探测器的设置部位应根据实际试验结果确定
D.
探测器设置在吊顶上方且火警确认灯无法观察时，吊顶下方设置火警确认灯
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【单选题】What does the author say about the cause（s） of cheating? 查看材料
A.
Family， culture and society play an active part.
B.
Bad school environment is the leading cause of student cheating.
C.
Parents are always to blame for their children's cheating behaviour.
D.
Cheating exists primarily because students learn bad things from TV.
【单选题】What's the major cause in the decline of Asian elephants?
A.
Their taming for circuses and zoos.
B.
The destruction of their natural homes.
C.
Man's lack of knowledge about their behavior.
D.
The greater vulnerability to extinction than other species.
【单选题】What's the major cause in the decline of Asian elephants?
A.
The taming for circuses and zoos.
B.
The destruction of their natural homes.
C.
Man's lack of knowledge about their behavior.
D.
The greater vulnerability to extinction than other species.
【单选题】在存储系统应用，LUN拷贝不包括以下哪种应用场景（）
A.
将数据从本存储系统复制到一个或多个其他存储系统
B.
只能在同类型的存储系统间进行数据复制
C.
将数据从一个或多个LUN其他存储系统复制到本存储系统
D.
将数据从本存储系统中的一个LUN复制到另一个LUN
【单选题】What was the cause of the patient's disease?
A.
Headache.
B.
Stomach trouble.
C.
Disturbance of conscience.
D.
Some unknown physical weakness
【单选题】在存储系统应用,LUN拷贝不包括以下哪种应用场景()
A.
将数据从本存储系统复制到一个或多个其他系统
B.
只能在同类型的存储系统间进行数据复制
C.
将数据从一个或过个LUN其他存储系统复制到本存储系统
D.
将数据从本存储系统中的一个LUN复制到另一个LUN
【单选题】What is a cause for the change of Stefania’s body clock?
A.
Eating fewer hours of sleep.
B.
Having more hours of sleep
C.
Lacking physical exercise.
D.
Getting no natural light.
【单选题】What was the cause of the patient's disease?
A.
Headaches.
B.
Stomach trouble.
C.
Disturbance of conscience.
D.
Some unknown physical weakness.
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