Stone tools began to be replaced around 6,000 years ago by metal tools, who were used to build instruments and simple machines.（）
A: began
B: who
C: to build
D: simple
A: began
B: who
C: to build
D: simple
B
举一反三
- The "New Stone Age" around 10,000 years ago saw the invention of metal tools and the wheel.
- The "New Stone Age" around 10,000 years ago saw the invention of metal tools and the wheel. A: 正确 B: 错误
- With metal tools, the Mayans were able to build high temples and made various works of art.
- The first primitive man known to have existed in China is ( ), who lived about 1.7 million years ago. ( ),who existed more than 600,000 years ago at Zhoukoudian, in the vicinity of modern Beijing, could walk upright, make and use simple tools, and make use of ( ) .
- With tools made of______, the Mayans were able to build high temples and made various works of art.
内容
- 0
In Para. 4, “organizational tools” are _______. A: tools that people use to calculate(计算) numbers B: tools that help people plan and/or arrange so that something is successful or effective C: tools used to manage a group of people who are doing something D: tools used in schools to help students share their personal interests
- 1
Britain began to build a “welfare state” after 1954.
- 2
Even those who were once for him began to turn against him.
- 3
The Internet began its quick development since ______ . A: six years ago B: five years ago C: recently D: not mentioned
- 4
The Arabians began to drink coffee around one hundred years ago.