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【单选题】
下列不属于举高消防车安全保障系统的是（）。A.
警灯
B.
备用动力源
C.
传感器
D.
各种检测开关
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反馈参考答案：
举一反三
【单选题】某校初一住校生周某某天晚上自习时偷跑到网吧玩游戏，第二天继续逃课在外上网10多个小时后，下午猝死在网吧。针对这件事，以下说法错误的是( )
A.
网吧不应该让周某进入，网吧要承担一定责任
B.
学校应加强管理，采取措施保障未成年人的安全
C.
周某的父母或监护人有责任引导其进行有益身心健康的活动
D.
周某违反学校规定偷跑到网吧上网致死，学校没有责任
【简答题】After reading the passage，we may know the writer is a person of＿＿＿.
【单选题】The questions in this group are based on the content of a passage. After reading the passage, choose the best answer to each question. Answer all questions following the passage on the basis of what i...
A.
Describing the life cycle of the Plasmodium protozoan as it relates to the disease malaria
B.
Comparing and contrasting the life cycles of the six variants of the Plasmodium protozoan known to cause malaria
C.
Addressing the public health implications of the life cycle of the Plasmodium parasite
D.
Providing information on how a person can avoid infection with malaria
E.
Describing the life cycle of the Anopheles mosquito as it relates to the transmission of the Plasmodium protozoan to humans
【单选题】The questions in this group are based on the content of a passage. After reading the passage, choose the best answer to each question. Answer all questions following the passage on the basis of what i...
A.
To educate readers about the health threats involved in the use of performance-enhancing drugs
B.
To analyze the ways in which professional athletes have eluded attempts to screen for performance-enhancing drugs
C.
To discuss the reasons why performance-enhancing drugs are a dangerous and persistent problem for society
D.
To complain about the inadequate efforts by government and professional sports organizations to eliminate the problem of performance-enhancing drugs
E.
To argue that athletes, both professional and amateur, should not use performance-enhancing drugs on the grounds that they are both dangerous and unfair
【单选题】高差和高程与水准面的关系是
A.
高差和高程与水准面都无关
B.
高差与水准面有关,高程与水准面无关
C.
高差与水准面无关,高程与水准面有关
D.
高差和高程与水准面都有关
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