The passage suggests that the present day problem with regard to computers is__________.

A. computer science courses in high schools

B. businessmen and women who use pocket calculators

C. maintenance(持续不断) checks on computers

D. companies which depend entirely on computers

A. allow us to buy fish and chips in France

B. make the journey from Europe to England dangerous but easier and faster

C. decrease more trade for London' s dockyards

D. make London more prosperous again

A. being heard

B. heating

C. to hear

D. having been heard

A. Bangladesh

B. Haiti

C.Canada

D. India

A. slight

B. simple

C. slender

D. single

A. for

B. toward

C. on

D. with

A)appeared B)altered C)approached D)admired

A) Because B) As C) Although D) However

A) understand, improving B) understood, improving

C) understand, to improve D) understood, to improving