根据右图回答问题:图中属于原核生物的是(),属于自养生物的是(),含有染色体的是()

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问题:

根据右图回答问题:

图中属于原核生物的是(),属于自养生物的是(),含有染色体的是()。

考点:高中生物生态系统的结构和功能生态系统的结构和功能题库
题型:填空题 案例分析题

急性阑尾炎并发穿孔性腹膜炎多见于()。

A.老年性急性阑尾炎

B.青壮年急性阑尾炎

C.小儿急性阑尾炎

D.妊娠期阑尾炎

E.新生儿急性阑尾炎

题型:填空题 案例分析题

产妇灌肠时的量为()。

A.100~200ml

B.200~300ml

C.300~400ml

D.400~500ml

E.500~1000ml

题型:填空题 案例分析题

I credit my typing skill to so many hours of chatting online. Unfortunately, as my typing speed increased on the Internet, all grammatical rules went out of the window. You see instant messages have their own shorthand language and grammar isn’t important, of which even a newbie (新手) is aware. They can leave out articles, subjects (主语), pronouns, etc. They can misspell or “respell” almost any word. They often ask “A/S/L” when they first chat. Abbreviations (缩写) and capitalizations (大写) are particularly important. English-speaking instant messengers also refuse to burden themselves with punctuation and capitalization.

After I came back China, I discovered not one but two instant messaging crazes. The first, which brought back memories of my previous addiction to the computer, was QQ. I can see evidence that the Chinese have the same kind of separate instant messaging language, even when they chat in English. My first word in this language, for example, was “ft”. This abbreviation for “faint” is used whenever there is a need to express surprise. I also discovered that Chinese use the same kind of abbreviation for a laugh. And there is an extraordinary number of smileys (表情符) to the “vomit” and “army soldier” smileys. There is even a SARA smiley.

After QQ, there is another, perhaps more widespread messaging trend. You guessed it --- cell phone text messaging. I now understand how useful text messaging is and why it is so common. I admit that I have been guilty of sending text messages while walking outside or sitting on the subway. Who hasn’t ? No matter where I go, I see people on their cell phones, messaging. In fact, it’s rare to see someone actually talking on their phone!

So it looks as if there is no escape from the instant messaging crazes, no matter where in the world I go. And that’s plainly not going to change. In the end, though, I can’t complain: instant messaging is quick, it’s cheap, it’s easy and it’s extremely fun too. And after all, everyone’s doing it.

小题1:The underlined phrase “went out of the window” in Paragraph 1 probably means        .

A.increased

B.occurred

C.disappeared

D.changed小题2:Which of the following is true according to the passage?

A.Grammar and correct spelling are very important while chatting online.

B.There are enough smileys and icons to express yourselves while chatting on line.

C.The writer is skilled at typing and once was addicted to online games.

D.It is impolite to leave out some unimportant words or letters while chatting online.小题3:The writer believes that instant messaging is          .

A.full of fun but time-consuming

B.widespread but unnecessary

C.quick but difficult to do

D.common, used and cheap小题4:Which might be the main idea of the passage?

A.Who can escape QQ and cell phone text messaging?

B.Why is instant messaging so popular?

C.Chatting online is good for your typing skill.

D.Chatting on QQ is natural for people.

题型:填空题 案例分析题

Frame Relay is simplified form of (1) , similar in principle to (2) , in which synchronous, frames of data are routed to different destinations depending on header information.

Packets are routed throught one or more Virtual Circuits known as (3) Most Virtual Circuits are (4) , which means that the network provider sets up all DLCI connections at subscription time. (5) are also part of the Frame Relay specification. They privide a link that only lasts only as long as the session.

5()

A.Permanent Circuits

B.Permanent Virtual Circuits

C.Switched Virtual Circuits

D.Switched Circuits

题型:填空题 案例分析题

虚证不寐的病理因素主要是

A.津液亏耗

B.阴血不足

C.阳气不足

D.脾气虚弱

E.肝郁脾虚

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