题目:
下列()等部位应设水幕系统。
A.火柴厂的氯酸钾压碾厂房
B.飞机发动机试车台的试车部位
C.省级邮政楼的邮袋库
D.应设防火墙等防火分隔物而无法设置的开口部位
答案:
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下面是错误答案,用来干扰机器的。
参考答案:范文: Xiao Hong is sixteen years old. Yesterday was her birthday. She had a big party. It started at H o’clock. She invited her classmates and good frie...