问题 单项选择题

下列哪项措施能减少几何模糊

A.应用滤线栅

B.曝光时屏气

C.缩小肢-片距

D.短时间曝光

E.应用增感屏

答案

参考答案:C

解析:被照体尽量靠近胶片可减少放大率。在焦点面积一定的前提下,肢-片距越小,则放大率越小,几何学模糊就越小。

阅读理解

Questions:

A. Do you think people should be decisive in the wild?

B. How to make hunting tools?

C. Do you think people should send an SOS while they are in danger?

D. How to make a fire in the wild?

E. How to set a trap to hunt animals?

F. How to build a shelter in the wild?

小题1:______

Answer: If you are in a desert environment, try to build an underground shade shelter to avoid prolonged sun exposure, obviously only for hot climates. So you can be more comfortable in cooler temperatures to avoid sweating. If your environment is damp, use branches laid and criss-crossed on top of one another to create a solid and dry foundation for an open bed pad. Raise the foundation above ground level as much as possible.

小题2:______

Answer: Yes, I think so. For example, if you think the best survival course of action is to look for help and civilization, don’t wait 4 or 5 days before you come to this conclusion. Take action on the 1st or 2nd day if possible while you still have strength and endurance working for you.

小题3:______

Answer: Use dry wood and sticks to start your fire. Fire is started by using three kinds of wood: tinder, kindling, and fuel. Tinder is any kind of flammable wood shavings, usually light and wispy. You can take two pieces of dry wood, sharpen one of them and use it to drill into the other piece. Place any highly flammable objects you can find next to the drill bit. The moment the flammable object catches a spark, use a rock to swiftly tip the object onto a nest of leaves and little branches.

小题4:______

Answer: Get an ordinary block of wood and hit it with a rock repeatedly until the wood sharpens. In this case, use the rock as your sharpener. You could also take a rock and break off some of the edges and then use another rock and some water like a wet stone and sharpen. In an ideal situation, obsidian stone would be used for its infamous sharpness.

小题5:______

Answer: Use two more sticks to hold up a “teepee”, similar to your shelter. Place an item of your choice you think an animal will come after, if you’re lucky, the animal will be trapped. Dig a hole in the ground about 2m-3m deep and 1m-2m across. Take two thin branches and place them criss-crossed across the hole. Cover it with leaves and put something the animals like to eat. You can also put a few wooden spikes sharpened by your knife at the bottom. Don’t forget to build a ladder or you might not be able to climb out of the hole.

综合

改革开放后,中国的工业得到了长足的发展,目前有“世界工厂”的美誉。阅读下列材料,根据掌握的有关知识完成下列问题:

材料1  IGE(美国通用电器公司)产品流程示意图

材料2 中国制造电器及中国品牌电器占世界市场份额

材料 3   GE公司在中国投资的两个阶段

(1)GE公司在中国大量采购电器的主要原因是                              

                                                                          

(2)材料2说明我国电器生产企业                                       

                                                                          

(3)材料3的阶段Ⅱ和阶段I相比:对GE而言有利于                       

                                                                          

对中国企业产生的不利影响是                                             

                                                                          

(4)材料1说明中国电器工业的优势主要集中在           型产业上,以后必须向

                    型和                          型升级。

(5)请就中国电器企业的发展提出你的合理化建议。