搜题请搜索小程序“爱下问搜题”
问题 选择题
(-1
1
2
+1
1
3
÷1
1
6
)  ÷(1-3
1
3
×1
1
5
+
-4
1
2
2
1
4
)=（　　）
A．
25
14
B．-
25
14
C．
1
14
D．-
1
14
答案

(-1

1
2
+1
1
3
÷1
1
6
)  ÷(1-3
1
3
×1
1
5
+
-4
1
2
2
1
4
)

=(-1

1
2
+
4
3
×
6
7
)  ÷(1-
10
3
×
6
5
-2)

=(-

3
2
+
8
7
)  ÷(1-4-2)

=(-

3
2
+
8
7
)  ×(-
1
5
)

=

1
14
，

故选C．

完形填空

根据短文内容和所给汉语提示，写出短文在空白出的个单词的适当形式。每空限用一词。

Parents, especially those of teenagers, care about their children’s education more than anything _小题1:___ （别的）.They would do everything for their children. Many of them spend most of their spare time    小题2:   （帮助） their children with studies. If they have no time or can’t do it ____小题3:______（他们自己）, they would hire family teachers or __小题4:____（送） their children to after-class schools. It seems as if a better education is all that parents ___小题5:______ （期待）for children.

How can we explain the present situation? First of all, many parents have 小题6:    （意识到）that future success ___小题7:_____（取决于） more and more on skills and education. Secondly, in a competitive(竞争的)society there are both losers and     小题8: （胜利者） .Those who have better skills and more knowledge will enjoy more opportunities.

Certainly, it is ____小题9:___（重要的） to learn to succeed, but the    小题10:  （第一）thing to learn is how to survive (生存), how to be a qualified citizen(合格的公民). If this is included in good education, the children will surely have a bright future and be healthy in body and mind.
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问答题


某垃圾填埋场工程，占地50hm2，填埋有效库容400万立方米，设计使用年限15年。填埋场采用斜坡作业法，垃圾按单元分层填埋，分格推平、压实、覆土、消毒。垃圾填埋自库底45m标高开始，当填至垃圾坝顶70m标高时，按一定坡度逐层向库后区上升填埋，直至终场填到库尾150m标高。主要构筑物包括垃圾坝、渗滤液收集系统(排渗导气系统)、截污坝、截洪系统、调蓄池和污水处理厂等。同时设有管理生活区，包括环境监测站、办公楼、机修间、职工食堂、材料库等。填埋场区内现有三条生产运输主要道路，并设有专门的环境监测站，负责监视填埋场运行对周围地下水、地表水、空气环境的污染动态，同时对污水处理厂的进出水水质进行管理监测，以调控污水厂处理效果。
[问题]

项目的潜在风险有哪些
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