瞳孔缩小时视力障碍明显，瞳孔散大时视力显著增加，见于下列哪种

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问题单项选择题

瞳孔缩小时视力障碍明显，瞳孔散大时视力显著增加，见于下列哪种类型的先天性白内障（）

A.冠状白内障

B.点状白内障

C.极性白内障

D.核性白内障

E.全白内障

答案

参考答案：D

阅读理解

Read and judge. 快乐英语阅读吧！判断下列句子是(T)否(F)与短文内容一致。

It's two in the afternoon. Danny is sleeping now. Tomorrow is Sunday. I will go to the park. I will look at

the beautiful flowers. I will pick some flowers for my mother. After that I will jump and run. I will run very

fast. I will run faster than the police officer. Oh, no! Don't catch me. Help! Help! I will not do that again.

Suddenly Danny wakes up.

（）1. Danny has a dream.

（）2. Danny goes to the park.

（）3. Danny picked some flowers in the park.

（）4. Danny was caught by the police officer.

（）5. Today is Saturday.

问答题论述题

为了使终端设备的数据能够可靠地进行发送和接受，数字用户电路要求必须具备什么功能？