第1空

？

Snowblindness may be avoided by _____.

A) concentrating on the solid white terrain

B) searching for something to look at in snow-covered terrain

C) providing the eyes with something to focus on

D) covering the eyeballs with fluid

？

The eyeballs become sore and the eye muscles ache because _____.

A) tears cover the eyeballs

B) the eyes are irritated by blinding sunlight

C) the eyes are irritated by blinding snow

D) there is nothing to focus on

请问2015年12月大学英语四级考试模拟试卷1第28题如何解答？

Snowblindness may be avoided by _____.

A) concentrating on the solid white terrain

B) searching for something to look at in snow-covered terrain

C) providing the eyes with something to focus on

D) covering the eyeballs with fluid

A.Programming

B. Analyzing

C. Designing

D. Modeling

A.it might be prevented and treated

B.it can be as risky as heart disease

C.results from a vitamin deficiency

D.it is an irreversible biological proces

A.Data Processing system

B.Big Data

C.Data warehouse

D.DBMS

A.focus on

B.account for

C.subject to

D.apply to

A.probing

B.positioning

C.partitioning

D.proces

A.focus

B.spend

C.expend

D.depend

A.action 

B.focus

C.cement

D.snap