[单项选择]Computer（）is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing.
A. storage
B. device
C. network
D. processor

[单项选择]Computer （） is a complex consisting of two or more connected computing units， it is used for the purpose of data communication and resource sharing.
A. storage
B. device
C. network
D. processor

[单项选择]Computer ______ is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing.
A. storage
B. device
C. network
D. processor

[单项选择]Computer______is a complex consisting of two or more connected computing units.it is used for the purpose of data communication and resource sharing.
A. storage
B. device
C. network
D. processor

[单项选择] (74) is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing。
A. Computer network
B. Computer device
C. Computer processor
D. Computer storage

[单项选择](73) is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing.
A. Computer network
B. Computer device
C. Computer processor
D. Computer storage

[单项选择]Within two days, the army fired more than two hundred rockets and missiles at military ______in the coastal city.
A. goals
B. aims
C. targets
D. destinations

[单项选择]

Text 1
More than two centuries after Benjamin Franklin used one to study lightning, a team of atmospheric scientists has found that kites are a potent research tool for studying air conditions at high altitudes.
Ben Balsley and John Briks at the University of Colorado have developed a kite and instrument package to sample the atmosphere up to 3.5 kilometers high, for up to two days at a time. The kite is cheaper and more flexible than balloons and aircraft, the traditional vehicles for atmospheric research. Within two years the team expects to fly kites up to 10 kilometers high, and Briks hopes to use these to measure carbon dioxide and methane emissions over the Brazilian rainforest and the transport of air pollutants over the Atlantic Ocean.
The kite is a 15-square-meter Para foil made of Mylar, which ’is not only strong, but unlike nylon, Joes not absorb water. The kite "string" is made of Kevlar, famous for its use in bullet-proo
A. Kites have been found to be a useful tool in research on air conditions
B. Balloons and aircraft are traditional tools in research on air conditions
C. C .The kites can now fly up to 10 kilometers high
D. The kites are expected to fly higher and do more researches in the near future

[单项选择]More than two thousands __ work in this refinery.
A. Russia
B. Russias
C. Russian
D. Russians

[单项选择]Wherever two or more unusual traits or situations are found in the same place, it is tempting to look for more than a coincidental relationship between them.
A. vestiges
B. residues
C. characteristics
D. figures