According to the passages, the decisive factor in maintaining a firm’s competitive
A. the introduction of new technologies
B. the improvement of worker’s basic skills
C. the rational composition of professional and managerial employees
D. the attachment of importance to the bottom half of the employees
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When I said goodbye to her, she ________ the door.
A. saw me at
B. set me off
C. sent me to
D. showed me to
It has been estimated that the earth’s surface temperature has increased ________ one quarter to three quarters of a degree since 1805.
A. to
B. be
C. at
D. with
Though he think highly of the development of computer science, the author doesn’t mean that ________.
A. computers are likely to become a new form. of intelligent life
B. human beings have lost control of computers
C. the intelligence of computers will eventually surpass will that of human beings
D. the evolution of intelligence will probably depend on that of electronic brains
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