近曲小管上皮细胞光镜下细胞间分界不清的主要原因是（）。A、在H

搜题请搜索小程序“爱下问搜题”

问题单项选择题

近曲小管上皮细胞光镜下细胞间分界不清的主要原因是（）。

A、在H—E染色切片中细胞染色太深

B、细胞侧面有许多侧突，相邻细胞侧突相互嵌合

C、侧面的细胞膜太薄

D、细胞排列紧密

E、以上都不对

答案

参考答案：B

阅读理解

阅读理解。

Yukio comes from Japan. He is now in China. He is twelve years old. He has yellow skin(皮肤),

black hair and black eyes. Li Lei is Yukio's (由纪夫的) friend. He comes from China. He is thirteen.

He has yellow skin, black hair and black eyes, too. Jim is Yukio's friend, too. He is from Canada. He

is twelve. He has blond hair and blue eyes. The boy in purple is Li Lei and the one in white is Jim.They

are good friends.

根据短文内容，判断正（T）误（F）。

( )1. Yukio has blue eyes.

( )2. Jim has yellow skin and black hair, but Yukio doesn't.

( )3. Jim is in white and Li Lei is in purple.

( )4. Li Lei is 12 years old.

( )5. They aren't good friends.

单项选择题

大叶性肺炎红色肝样变期的主要病变为（）。

A.大量的浆液渗出

B.大量的中性粒细胞渗出

C.大量的纤维素渗出

D.大量的红细胞渗出

E.大量的巨噬细胞渗出