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【判断题】
自动喷水灭火系统由洒水喷头、报警阀组、水流报警装置等组件以及管道、供水设施组成,能在发生火灾时自动喷水灭火。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】三等水准测量采用“后-前-前-后”的观测顺序可以减弱()的影响。
【简答题】教学策略的特性包括目的性、 和调控性。
【单选题】Why does the author mention New York City in line 6 ?
A.
To emphasize how small the population of the Pacific Islands is
B.
To emphasize the extreme distances between the Pacific Islands and other regions
C.
To note the economic ties of the Pacific Islands to other regions
D.
To note the lack of urban environments on the Pacific Islands
【单选题】--- Why are you so angry? --- Jack failed to return my tennis bat on time again. He _______his words.
A.
is always eating
B.
has always eaten
C.
always eat
D.
always ate
【简答题】why, to be clear, is not bat's fault? give me one example
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