问题 单项选择题 A型题

下列关于人的眼球的光学特征说法,错误的是()

A.角膜的整体屈光力大约为+43D,占眼光学系统静态屈光力的2/3以上

B.角膜缺乏前表面的泪液膜的保护时,前表面屈光力就会减弱,视网膜的像就变得相当模糊

C.不包括角膜厚度的前房深度平均大约为3.0mm,假设其他因素不变,前房深度每减少1mm,眼的总屈光力约增加1.4D

D.晶状体具有平衡眼屈光力的能力

E.视网膜的分辨力在整体范围是均匀的

答案

参考答案:E

解析:视网膜的分辨力在整体范围内是不均匀的。

阅读理解

阅读理解。

     When you are in Hongkong, you must be very careful in the streets because the traffic drives on the left.

It is different from that in other areas of China.

     If you are the first time to come to Hongkong, you must look to the right side and then the left before you

cross the street. If the traffic lights are red, the traffic must stop. Then people on foot can cross the road

carefully. But if the traffic lights are green, the traffic can go. People on foot mustn't cross.

     When people go to or come from work in the morning and evening, the streets are very busy. Traffic is

the most dangerous then, especially for the children.

     When you go by bus in Hongkong, you have to be careful, too. You must always remember the traffic

moves on the left. So you must be careful. Have a look first, or you will go the wrong way.

     In Hongkong, there are many big buses with two floors you can sit on the second floor. From there you

can see the view of the whole city (城市的全景) well. It's very interesting.

阅读短文,判断正误.正确的用"T".错误的用"F"(每小题1分,共5分)

(    )1.The traffic in Hongkong drives on the right.

(    )2. The traffic in Hongkong is the same as that in other areas of China.

(    )3. If the traffic lights are green, the traffic can go.

(    )4. You can sit on the first floor and see the view of the whole city.

(    )5. According to the passage we know we must obey the traffic rules in Hongkong.

多项选择题