患者女性，43岁。双侧腮腺区反复肿大伴口干、眼干，咽部亦有干燥及异物感。临床检查可见

有报道说：“某年3月28日11时左右，N市出现了光化学烟雾”。为此，环保部门开展了调查。（共14分）

资料1：“光化学烟雾”对人体健康有很大影响，其表现之一是对眼睛有明显刺激。产生“光化学烟雾”的重要条件是：①有较高浓度的一次污染物（如NO2等）；②有强烈太阳光和较长时间的日照。

资料2：3月24日-28日有关空气污染物的日平均值如下表所示。

 资料3：“霾”是一种类似于轻雾的天气现象。据气象资料统计，N市各个月份中，最低日照时数在3月。有关气象资料见下表。

 资料4：对市民身体健康影响情况抽样调查结果见下表。   根据上述资料，完成下列问题： 

（1） 3月24日~28日N市空气污染物浓度均呈现趋势__________，最主要的污染物是_______。

（2）此次污染对人体的影响主要表现在_______（填正确项字母）。[ ]

A、眼睛

B、上呼吸道

C、身体疲劳

D、没有影响

（3）综合上述分析，是否可以确定这次污染就是光化学烟雾污染？请说明理由。

_____________________________________________________________________________

阅读理解

     China_is_going_green. In order to reduce air pollution and oilshortages, automobile manufacturers

have announced their plans to develop hybrid vehicles (混合燃料汽车) for the Chinese market.

Toyota's hybrid car Prius will be ready to drive in China this week. Let's have a look at the new car.

     Any vehicle is a hybrid when it combines two or more sources of power. Hybrid cars run off a

rechargeable battery and gasoline. Hybrid cars have special engines, which are smaller than traditional

gasoline engines. They run at 99 percent of their power when the car is cruising (匀速行驶). A specially

designed battery motor provides extra power for running up hills or when extra acceleration is needed.

     Step into a Prius, and turn on the engine. The first thing you notice is how much quieter it is than a

traditional car. At this point, the car's gasoline engine is dormant (休眠). The electric motor will provide

power until the car reaches about 24 km/h. If you stay at a low speed, you are effectively driving an

electric car, with no gasoline being used, and no waste gas gives off.

     The onboard(车载的) computer makes the decision about when to use a gas engine, when to go

electric, and when to use a combination of the two. If you go over 24 km/h, when you step on the gas

pedal (油门), you are actually telling the computer how fast you want to go.

     The electronic motor recharges automatically using a set of batteries. When driving at high speed, the

gasoline engine not only powers the car, but also charges the batteries. Any time you use the brake, the

electric motor in the wheels will work like a generator and produce electricity to recharge the batteries.

     As a consequence, the car's batteries will last for around 200,000 miles.

1. The author writes this passage mainly to________.

A. teach people how to drive a hybrid car

B. introduce a new kind of "green" car

C. show how to save their gasoline when driving a car

D. announce plans to develop hybrid vehicles for China

2. The first sentence probably refers to ________.

A. there will be more and more green land in China

B. China is still young and lacking experience

C. China's new cars are combinations of different green models

D. China has started producing environmentally friendly cars

3. Which of the followings is NOT true?

A. The hybrid cars reduce air pollution and oilshortages.

B. The car's gasoline engine doesn't work until it reaches about 24 km/h.

C. This kind of car is completely controlled by an onboard computer.

D. A specially designed battery motor provides extra power when needed.

4. What is the most important feature of hybrid cars?

A. They are powered by both a rechargeable battery and gasoline.

B. They are much quieter than traditional cars.

C. They only use 99 percent of their power to run up hills.

D. They have smaller engines than traditional gasoline ones.

5. What can we conclude from the story?

A. The batteries can be recharged at any time you want.

B. Using the brake suggests that the gasoline engine should work.

C. The batteries will last for 200, 000 miles without being recharged.

D. The gasoline engine charges the batteries as well as powers the car.

关节端骨质疏松时，属于关节病变的（）

A.Ⅰ期

B.Ⅱ期

C.Ⅲ期

D.Ⅳ期

E.Ⅴ期

甲乙两辆客车上午8点同时从两个车站出发，相向而行，经过一段时间，两车同时到达一条河的两岸。由于河上的桥正在维修，车辆禁止通行，两车需交换乘客，然后按原路返回各自出发的车站，到站时已是下午2点。已知甲车每小时行驶40千米，乙车每小时行驶45千米，两地相距多少千米（交换乘客的时间略去不计）？（）

A．180

B．240

C．255

D．360

某工程计划进度与实际进度见表6。表中粗实线表示计划进度(进度线上方的数据为每周计划投资)，粗虚线表示实际进度(进度线上方的数据为每周实际投资)，假定各分项工程每周计划进度与实际进度均为匀速进度，而且各分项工程实际完成总工程量与计划完成总工程量相等。

[问题]

在上表中标出各分项工程已完工程计划投资表示线和每周已完工程计划投资额。