某机电公司承接了某200MW发电厂的厂用电工程及其消防系统的施工。在电气安装过程中对电气回路进行了通电检查试验；设备及器材进场后安装前进行了认真检查。由于输电外线未建成，施工要临时用电，因此施工单位编制了临时用电方案。消防工程施工前取得了施工许可。在施工过程中对与消防工程相关的分部工程组织了消防验收。
火灾探测报警与灭火系统的火灾报警区域的设置是（）。
A．每台机组为一个火灾报警区域
B．控制楼、微波楼和通信楼不能成为一个火灾报警区域
C．运煤系统为一个火灾报警区域
D．点火油罐区为一个火灾报警区域
E．消防水泵采用双电源或双回路供电有困难时，宜采用柴油发电机作动力
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| A man wanted to make an investment (投资). An idea struck him:"Why don't I plant a small mango tree and enjoy the benefits when it grows into a big one?" So he went to the __1_, bought a small tree and took it home. To the pride of his family, he _2_ it in the center of his __3_. He read everything about _4_ a mango tree. He got up early every morning, for he was determined to supply the tree with all the necessary nutrients. He watered it, _5_ it with manure (粪肥), and took good care of its leaves by removing those _6_ ones. He made sure the tree received enough care. Many times he sat and _7_ the beauty of the growing tree while dreaming about the _8_ mangoes that the tree would _9_. His mind was always filled with the wish to taste the first fruit of the tree. Years went by 10 …now, he had a big tree with its leaves shining and healthy, its bark healthy and hard. It was a big attraction 11 it decorated his whole garden. Then one day he noticed a small bud (花蕾), which in a couple of days grew into a beautiful 12 . Now he could 13 wait for the fruit so he started to increase his supply of nutrients and care. Then one day the tree let out its first product-a small green fruit. The man was so 14 . He waited for a few more weeks till the fruit grew in 15 . The day came when he decided to 16 the first fruit of the tree. He 17 the tree, picked the fruit and then came his 18 . The fruit was not like what he expected. It was hard, big and round. He was puzzled. He was sad. Seeing this, his 19 came and asked him what happened. He told them that the fruit from his tree was not what he wanted. When the neighbours heard this, they did not know whether to 20 or comfort him, for what he planted years ago was not a mango tree. We can only reap (收获) what we plant. | ||||
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孙中山为中华民国临时大总统时，你认为他可能被称呼为
A．老爷
B．大人
C．先生
D．陛下
在网络环境下，信息组织的具体目标？
反映有效组合的收益和风险水平之间均衡关系的方程式是( )。
A．证券市场线方程
B．证券特征线方程
C．资本市场线方程
D．套利定价方程
适合雪球抽样的情况是（）
A.调查城市中的乞讨人员
B.调查大学某个系的在校生
C.调查广州市各个居委会的运转状况
D.研究某个中学某个班的学习情况