识图题 （1）图中人物是谁？生活在什么时期？ _________________

某化工企业生产某化工产品A，现拟进行扩产改造。现状该化工产品的产量为5000t/a，年工作300天、7200h。消耗主要原料B为7000t/a，用水量为3.4万t/a，年耗电量24万kW-h，有1个3t/h燃煤锅炉，耗煤7200t/a。锅炉安装有脱硫除尘设施，全厂生产、生活污水经厂污水处理站处理后排放，约70m³/d。车间有两个高度均为20m的工艺废气排气筒P₁和P₂，均排放HCl废气，相距约35m。现状废气及废水污染物排放监测数据见表1、表2、表3。改扩建采用先进生产工艺，淘汰旧设备，对现有公用工程装置做相应增容改造。该产品产量拟扩产达到15000t/a。消耗主要原料B为18000t/a，用水量达9万t／a，年耗电量达75万kW-h。锅炉增容改造后燃烧含硫0.4%的低硫煤，吨煤产尘系数为3%，用量增加到21600t/a（假设增容后锅炉热效率和吨煤产汽量不变）。同时对锅炉脱硫除尘系统进行改造，提高脱硫率、除尘效率分别至85%和99%，以满足新时段排放标准要求。同时对厂污水处理站进行改造，预计排水量增加到185m³/d，处理出水水质为：COD≤100mg/L，氨氮≤15mg/L。

根据提供的数据，该企业现状废水（）。

A.达标排放；

B.未达标排放；

C.无法判定是否达标排放。

单位负责人的直系亲属不得担任本单位会计机构负责人。 ( )

关于物业服务合同的特征，叙述错误的是（）。

A.物业服务合同的订立以当事人相互信任为前提

B.物业服务合同是无偿的

C.物业服务合同是劳务合同

D.物业服务合同既是诺成合同又是双务合同

X线穿过人体后，强度分布出现差异，称为（）

A.物体对比度

B.X线对比度

C.天然对比度

D.吸收对比度

E.影像对比度

World Water Shortage

A new study warns that about thirty percent of the world’s people may not have enough water by the year 2025.
A private American organization called (1) Action International did the new study. It says (2) than three-hundred-thirty-five-million people (3) enough water now. The people live in twenty-eight (4) . Most of the countries are in Africa or the (5) East.
P-A-I researcher Robert Engelman says (6) the year 2025, about three-thousand-million people (7) lack water. At least 18 more countries are (8) to have severe water problems. The demand (9) water keeps increasing. Yet the amount of water on Earth (10) the same.
Mr. Engelman says the population in countries that lack water is (11) faster than in other parts of the world. He says (12) growth in these countries will continue to (13) .
The report says lack of water in the future may (14) in several problems. It may increase health (15) . Lack of water often means drinking (16) not safe. Mr. Engelman says there are problems (17) over the world because of diseases, such as cholera, (18) are carried in water. Lack of water may also result (19) more international conflict. Countries may have to (20) for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.