气焊枪在点火时的操作顺序如何?

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问题:

气焊枪在点火时的操作顺序如何?

考点:建设工程技术与计量(安装工程)第一节切割和焊接第一节切割和焊接题库
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Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. alert    B. classify      C. commit   D. delicately   E. gentle     F. impose

G. labels   H. moderation    I. relieve    J. signals      K. simply

Let's say you've decided you want to eat more healthfully. However, you don't have time to carefully plan menus for meals or read food __小题1:__ at the supermarket. Since you really__小题2:__ yourself to a healthier lifestyle, a little help would come in handy, wouldn't it? This is where a "choice architect" can help__小题3:__some of the burden of doing it all yourself. Choice architects are people who organize the contexts in which customers make decisions. For example, the person who decides the layout of your local supermarket-including which shelf the peanut butter goes on, and how the oranges are piled up—is a choice architect.

Governments don't have to__小题4:__healthier lifestyles through laws  for example, smoking bans. Rather, if given an environment created by a choice architect-one that encourages us to choose what is best-we will do the right things. In other words, there will be designs that gently push customers toward making healthier choices, without removing freedom of choice. This idea combines freedom to choose with__小题5:__hints from choice architects, who aim to help people live longer, healthier, and happier lives.

The British and Swedish governments have introduced a so-called "traffic light system" to __小题6:__foods as healthy or unhealthy. This means that customers can see at a glance how much fat, sugar, and salt each product contains__小题7:__by looking at the lights on the package. A green light __小题8:__that the amounts of the three nutrients are healthy; yellow indicates that the customer should be__小题9:__; and red means that the food is high in at least one of the three nutrients and should be eaten in __小题10:__. The customer is given important health information, but is still free to decide what to choose.

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19世纪三四十年代,欧洲无产阶级作为独立的政治力量登上历史舞台,其含义主要是指无产阶级[ ]

A.接受了科学革命理论的指导

B.与资产阶级的矛盾上升为主要矛盾

C.进入了有组织的革命斗争时期

D.开始提出了独立的经济和政治要求

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某住宅开发项目土地使用年限为2005年5月1日至2075年4月30日,规划建筑面积15000m2,预计售价2000元/m2。该项目于2005年9月1日开工,原定工期12个月,建筑费为1000元/m2,管理费为建筑费的5%,建筑费与相应管理费投入时间为:开工后前两个季度分别为20%,后两个季度分别为30%。假定在每个季度中间投入,年利率6%,销售税率和销售费用分别为售价的6%和3%,二季度结束时开发商拟将项目转让。受让方委托估算该项目 2006年3月1日的价格。
采用假设开发法估价。预计项目在完工时全部售出,投资利润率取20%,季度利率为1.6%。该项目在2006年3月1日的价格为户,估算如下。
①计算开发完成后的价值
2000×15000/(1+1.6%)2元=2906.256万元
②计算建筑费
[1000×15000×30%/(1+1.6%)0.5+1000×15000×30%/(1+1.6%)1.5]元=(446.443+439.412)万元=885.855万元
③计算管理费
885.855× 5%/(1+1.6%)1.5万元=43.251万元
④计算销售税费
2906.256×(6%+3%)/(1+1.6%)2万元=253.390万元
⑤计算利润
(P+885.855+43.251+253.390)×20%万元=0.2P+236.499
⑥计算项目价格
P=开发完成后的价值-建筑费-管理费-销售税费-利润=2906.256-885.855-43.251-253.390-0.2P-236.499=1239.384万元

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广大驾驶员为保障车辆在行驶过程中的安全,有哪些注意事项?

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柔性版的弯曲变形量与()无关。

A.印版厚度

B.印版长度

C.版材弹性模量

D.印版滚筒半径

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