()作为小蜂科一类微小的卵寄生蜂,是我国乃至世界上应用规模最大的生物防治天敌。A、赤

题型:单项选择题

问题:

()作为小蜂科一类微小的卵寄生蜂,是我国乃至世界上应用规模最大的生物防治天敌。

A、赤眼蜂

B、恩蚜小蜂

C、弯尾姬蜂

D、浆角蚜小蜂

考点:当代科学技术新知识当代科学技术新知识题库
题型:单项选择题

We use the Internet for many things: business, shopping, writing letters, talking to people, finding information, and so on. In recent years, a new kind of English has grown on the Internet. There’s no real word for it yet, so we’ll call it e-talk. People don’t like typing too much. To save time, they turn phrases (短语) into a few letters called acronyms(首字母缩略词). Acronyms are often used in chat rooms.

Some of them are:

BTW(by the way)     BRB (be right back)

LOL (laughing out loud) IMO (in my opinion)

People also use many abbreviations. They are shortened forms of words. Some common abbreviations are:

info (information)    puter (computer)    pic (picture)      sec (second)

We usually don’t see people when we communicate on the Net, so people have new ways to show feelings. Most people use their keyboards to draw “feeling”, such as:

: ) (happy)     :-( (sad) ;    : P (joking)   : O (surprised)

These days, many forums have picture feelings. For example:

happy          sad         angry        cool

There are even whole new words, like ‘newbie’ (someone who is new on a chat board or forum). When you write something bad about someone else, it’s called ‘flaming’ the person.

It takes time to get used to e-talk. Also, different groups in the Net have their own special ways of communicating. Newbies sometimes have to ask other people what they mean. As the Internet grows, e-talk will continue to grow and change.

小题1: Why do people type acronyms?

A.To show their feelings.

B.To make jokes.

C.Because people can type them quickly.

D.In this way, newbies won’t understand them.小题2:What does “My puter is not working well. :-( ” mean?

A.The person is happy about getting a new computer.

B.The person has to go away from their computer.

C.The person is angry at somebody.

D.The person is sad that his computer is having problems.小题3:If someone is angry, what may he type?

A.

B.

C.LOL

D.BRB小题4:E-talk will probably_________.

A.keep changing

B.stay the same

C.be used by people on the telephone

D.be easy for newbies to understand小题5:People can do the following through the Internet except _________.

A. doing shopping                B. writing diaries

C. eating foods                   C. playing games

题型:单项选择题

有关染色体、DNA 和基因的叙述不正确的是[ ]

A. 染色体由DNA 和蛋白质组成  

B.基因是有遗传效应的DNA 片段  

C.基因决定生物的性状

D.人的体细胞内每一对染色体的大小、形态都相同

题型:单项选择题

阅读漫画《龟兔赛跑新传》

你认为漫画表达了什么道理?并作简要说明。

________________________________________________________________________________

题型:单项选择题

2005-2009年,广东居民人民币储蓄存款余额从19051亿元增至31346亿元,若其间伴随如下变化: [ ]

①利息税税率上升 ②利息率上升 ③居民收入上升 ④消费上升 ⑤储蓄机构增加其中导致储蓄增长的原因是

A.①②

B.①④

C.②③

D.④⑤ 

题型:单项选择题

行政机关提供行政许可申请书格式文本( )收费。

A.可以

B.可以按成本

C.可以适当

D.不得

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