问题 单项选择题 A1型题

任何CNV的ICGA强荧光斑范围>1PD的隐匿性CNV为()

A.Ⅰ型CNV

B.Ⅱ型CNV

C.中心凹旁CNV

D.中心凹外CNV

E.斑状CNV

答案

参考答案:E

解析:按CNV的ICGA形态特征分类如下:(1)焦点状CNV:指同时具有以下两个特征的隐匿性CNV:①CNV性强荧光范围≤1PD;②CNV性强荧光的边界清楚,荧光较明亮。(2)斑状CNV:指任何CNV性强荧光斑范围>1PD的隐匿性CNV。斑状CNV的荧光强度一般比焦点状CNV的要弱。(3)结合型CNV:指上述两种均存在的CNV损害。(4)混合型CNV:指各种各样的CNV形式混杂在一起。

阅读理解

阅读短文,并按要求完成1-5题。

     Many students wear a pair of glasses because their eyes are nearsighted (近视). Do you feel tired when

you are always wearing the glasses? Yes, many of us will feel tired when we wear the glasses for a long

time. So a new kind of glasses is more and more popular now. And millions of people like it very much. It

is contact lenses (隐形眼镜).

     Millions of people use the contact lenses. For anyone who doesn't mind sticking his fingers in his eyes,

there are clear advantages: contacts correct vision better than glasses, less often crushed underfoot, don't

make you look boring, and come in a huge variety of forms-safe, firm, colored, and even theatrical.

     More and more people are turning to use of contact lenses. But are they safe to you? Latest research

shows that not all chemicals are effective in killing germs (细菌). And some of those germs can cause (引起)

blindness in 24 hours. While most problems with contacts can go back to poor hygiene (卫生) or overuse,

while tired and emotional, to sleep in their lenses for the third night running. 

     So you must pay more attention to your contact lenses. Keep the right ways of using it. Wash it in time

and in right ways. So that it can keep your eyes safe.

判断正误,英译汉及回答问题。(1为判断,2为翻译,3-5为简略回答问题)

1. And all of those germs can cause (引起) blindness in 24 hours. (T or F)

    ________________________________________________________________

2. Put the underlined sentence (in Paragraph 1) into Chinese.

    ________________________________________________________________

3. What do many students wear when their eyes are nearsighted?

    ________________________________________________________________

4. How should you use the contact lenses correctly?

    ________________________________________________________________

5. Why are more and more people turning to use of contact lenses?

    ________________________________________________________________

单项选择题