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【单选题】
干式自动喷洒灭火系统可用于室内温度低于（）的建筑物内。A.
0℃
B.
4℃
C.
l0℃
D.
6℃
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】3.22中华民族是一个历史悠久的伟大民族，在数千年的历史长河中，创造了十分辉煌的文明，为人类发展和进步做出了举世公认的重要贡献。下列能说明这一结论的历史事实主要有
A.
汉朝雄风，开辟古丝绸之路
B.
大唐盛世，古丝绸之路兴盛
C.
南宋，海上丝绸之路兴盛
D.
成杰思汗及其子孙开疆掠土，南宋灭亡
E.
明朝，郑和七下西洋
【单选题】-- You've agreed to go. So why aren't you getting ready?--But I ______ that you would have me start at once.
A.
don't realize
B.
didn't realize
C.
hadn't realized
D.
haven't realized
【单选题】“Since you’ve agreed to go, why aren’t you getting ready？” “But I ______ that you would have me start at once.”
A.
don’t realize
B.
didn’t realize
C.
hadn’t realized
D.
haven’t realized
【单选题】--- You have made a promise to go with me to Nanjing. So why aren’t you getting ready? --- But I ________ that you wanted me to start at once.
A.
haven’t realized
B.
hadn’t realized
C.
didn’t realize
D.
don’t realize
【单选题】. -- You agreed to go ,so why aren't you getting ready? -- But I ________ that you ________ me to start at once.
A.
don't realize ;want
B.
don't realize ;wanted
C.
haven't realized ;want
D.
didn't realize; wanted
【单选题】Why are you _______your lunch? Aren't you hungry?
A.
pigging out
B.
parting with
C.
picking at
D.
pointing out
【单选题】--You've agreed to go? So why aren't you getting ready? --But I ________ that you would have me start at once.
A.
don't realize
B.
hadn't realized
C.
didn't realize
D.
am not realizing
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