题目内容
（请给出正确答案）
[单选题]
Computers are the second most useful ____ of the world.
A.inventions
B.inventors
C.invention
D.inventor
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题目内容
（请给出正确答案）
A.inventions
B.inventors
C.invention
D.inventor
答案
更多“Computers are the second most useful ____ of the world.”相关的问题
第1题
This passage tells us ______.
A．about computers
B．how to buy a computer
C．what computers are good to use
D．which computers are expensive
第2题
Girls usually rate themselves ______.
A．as being uncomfortable using computers
B．as comfortable using computers
C．as experts with computers
D．as very good with using computers
第3题
Operators of computers should give instructions to work in the form. of program______.
A．which are introduced to turn into computers
B．through which computers could process "language"
C．which could tell computers what to do and how to do it
D．all of the above
第4题
In this sixth grade classroom, you would find ______.
A．only boys allowed to use the computers
B．only girls allowed to use the computers
C．no computers in the classroom
D．both boys and girls allowed to use the computers
第5题
The computational speed of computers ______ doubled in the last decade.
A．have
B．has
C．will
D．would
第6题
Computers are very versatile. This sentence means ______.
A．computers are very expensive
B．computers can do many things
C．computers are very good to play with
D．computers are very cheap
第7题
In ______ century, computers will be used more widely.
A．twenty-one
B．the twenty-one
C．twenty-fast
D．the twenty-first
第8题
A.there are
B.there has been
C.there were
D.we have
第9题
The group of young men created the viruses to______.
A．damage all the computers
B．test their good ability
C．play tricks on operators of the computers
D．attack foreign computer experts
第10题
What's the main idea of this passage？
A．The development of electronic computer.
B．How to operate a computer？
C．What's the use of computers？
D．What do the scientists and technicians do about computers？
