下列有关我国境内远古人类及其生活情况的叙述，不正确的是[ ]

搜题请搜索小程序“爱下问搜题”

问题选择题

A．元谋人是目前已确定的我国境内的最早人类

B．北京人使用打制石器

C．山顶洞人已懂得人工取火

D．远古人类都过着氏族生活

答案

答案：D

阅读理解

阅读短文，判断正(T)误(F)。

Computers Are Very Popular

Today, computers are very popular (流行的). People use them for work and play. Many Chinese

families have one computer or more. There are many computers at school and in offices. Students study

computer classes and teachers teach classes with computers. People use computers in many places. You

can see computers in shops, restaurants and everywhere. Do you have a computer?

( ) 1. People use computers a lot.

( ) 2. People can work with a computer.

( ) 3. One student has one computer at school.

( ) 4. You can see a computer in shops.

填空题案例分析题

下图是大白鼠细胞内蛋白质合成的一个过程。请分析回答下列问题：

图中所示属于蛋白质合成过程中的（）步骤，该过程的模板是（），原料是（）；合成的过程叫（）。