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【简答题】
我国的《暖通规范》采用了不保证天数的方法确定北方城市的采暖室外计算温度，即人为允许每年有几天的实际室外温度（ ）规定的采暖室外计算温度值，也就是这几天的实际室内温度可以（ ）室内计算温度值。[填空(1)] [填空(2)]
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反馈参考答案：
举一反三
【单选题】下列哪种情形不属于特别重大事故:( )。
A.
造成30人以上死亡
B.
造成100人以上重伤(包括急性工业中毒,下同)
C.
造成1亿元以上直接经济损失
D.
繁忙干线客运列车脱轨18辆以上并中断铁路行车24小时以上;
【单选题】听力原文：W: How long does it take you to get to work? M: It's only a fifteen minute bus drive early in the morning but coming home from work is quite different it takes at least twenty or thirty minutes. ...
A.
15 minutes.
B.
45 minutes.
C.
35 minutes.
D.
30 minutes.
【单选题】听力原文：M: How come David is always so full of energy? W: He has a strange but highly effective way of sleeping. M: What is that? W: He takes a short sleep for an hour every six hours and has a total of ...
A.
It's effective.
B.
It's strange.
C.
It's the best.
【单选题】The boy is made__ the room every day. A. clean B. cleaning C. to clean D. cleans
A.
clean
B.
cleaning
C.
to clean
D.
cleans
【简答题】Napoga is a 12-year-old girl in Ghana, Africa. It is hard for her family to get clean water. Every morning, she leaves home at half past five to get clean water for her family in a village far away. I...
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