以下细胞类型属于树枝状细胞的有() A.黑素细胞 B.朗格汉斯细胞 C.基底层细胞

题型:多项选择题

问题:

以下细胞类型属于树枝状细胞的有()

A.黑素细胞

B.朗格汉斯细胞

C.基底层细胞

D.麦克尔细胞

考点:上海住院医师中医外科外科住院医师外科住院医师题库
题型:多项选择题

阅读理解。

     Now there are many thousands of computers all around the world. Some of them are big and some of them are

small.  They are very useful . People can use them to send and get e-mails,   look for   things on the Internet, play

computer games ... But in 1946 the first computer in the world cannot do these things. It is for calculating. It is as

big as a room! Only some scientists can use it. Some people say the first computer is in China. Why do they think

so? Because the first abacus(the oldest calculating machine) appeared much earlier in China than the big computer

in America.      

Notes: calculate 计算 scientist 科学家 abacus 算盘 appear 出现

回答下列问题:

1.What can people use the computer to do ?

_______________________________________________________.

2.Can the first computer do these thing in 1946?

___________________________________________________.

3.What is the first computer used for?

____________________________________________________________.

4.Why do some people think the first computer is in China?

__________________________________________

5.What do you think of it? Do you think the first  computer is in China ,too?

____________________________.

题型:多项选择题

眼底出现新生血管或有玻璃体积血属()

A.糖尿病视网膜病变1期

B.糖尿病视网膜病变2期

C.糖尿病视网膜病变3期

D.糖尿病视网膜病变4期

E.糖尿病视网膜病变5期

题型:多项选择题

试述当今世界政治多极化趋势的表现。

题型:多项选择题

利用堆栈实现反跟踪的原理是什么?

题型:多项选择题

树木栽植时,根据实际需要,有时需要挖假植沟,一般沟宽和深分别是()。

A.宽150-200cm、深30-50cm

B.宽50-100cm、深30-50cm

C.宽150-200cm、深100-150cm

D.宽50-100cm、深50-100cm

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