It can reasonably be inferred that the author ______.

A．raising the world’s temperature only a few degrees would not do much harm to life on the earth B．lowering the world’s temperature merely a few degrees would lead many major farming areas to disaster C．almost no temperature variations have occurred over the past decade D．the world's temperature will remain constant in the years to come

A．the human eye is sensitive to all wavelengths B．colors are related to wavelengths C．there are more color-blind women than color-blind men D．failure of rods cause color-blindness

A．the force of the electromagnetic field is too weak to be harmful B．the force of the electromagnetic field is weaker than the electric field that the cells generate C．electromagnetic field may affect health D．only more powerful radiation can knock electron out of human body

A．strengthened when they include courses in design. B．weakened by the courses designed to develop mathematical skills. C．weak because they include some nonscientific components. D．strong despite the absence of nonscientific modes of thinking.

A．is in favor of prohibiting passengers' use of electronic devices completely B．has overestimated the danger of electromagnetic interference C．hasn't formed his own opinion on this problem D．regards it as unreasonable to exercise a total ban during flight 此题为多项选择题。

A．little opportunity to develop according to their own inclinations than ordinary children B．more opportunity to develop according to their own inclinations than ordinary children C．as much opportunity to develop according to their own inclinations as ordinary children D．absolute opportunity to develop according to their own inclinations 此题为多项选择题。

A．the sightseers cannot visit the Castle and the Palace separately B．the playgoers spend more money than the sightseers C．the sightseers do more shopping than the playgoers D．the playgoers go to no other places in town than the theater 此题为多项选择题。

A．the Obama administration takes on some members of the Bush crew. B．some members of the Bush crew are involved in negative publicity. C．Obama"s approach to national security is proved by Cheney to be a failure. D．George Bush is not popular with Americans as a president at all.

A．the private sector is the last straw for health services. B．the physical condition of workforce is rather weak. C．some miners might have been infected with AIDS. D．HSBC attracts customers with innovative health schemes.

A．killing foxes with poison is illegal B．limiting the fox population is unnecessary C．hunting foxes with dogs is considered cruel and violent by some people D．fox-hunting often leads to confrontation between the poor and the rich

A．on the side of the south. B．on the side of the north. C．neutral. D．uncertain.

A.the UK is reluctant to remold its economic pattern . B.GDP as the measure of success is widely defied in the UK . C.the UK will contribute less to the world economy . D.policymakers in the UK are paying less attention to GDP .

A．half of college students hold credit cards B．students will no longer get credit cards C．over 4/5 college students have debt difficulties D．tuition is too high for most of the college students

A．Mr. Cattanzara was surprised at George's reading plan. B．Mr. Cattanzara was doubtful about George throughout. C．George was forced to tell a lie and then regretted. D．George lied at the beginning and then became serious.

A．was produced because of the seawater infused into the reactors in Fukushima. B．was similar to that grew from the underwater nuclear test in the 1950s and 60s. C．will mushroom as that derived from the underwater nuclear test half a century ago. D．will spread widely and mix with air in different layers of atmosphere.

A．schools in poor areas have difficulty in attracting good teachers. B．only around 1,500 top-third students choose to be teachers. C．improving the students" performance may have positive effect on economy. D．teachers in the US have lower prestige than those in other top-performing nations.

A．is part of Microsoft"s Windows operating system. B．can help a computer to avoid online criminals. C．is offered by legitimate Web sites. D．can control a computer through its system weakness.

A．human activities will do grave damage to rainforests B．Amazon rainforest soils used to be the richest in the world C．farming is responsible for the destruction of the Amazon rainforests D．there once existed an urban civilization in the Amazon rainforests

A．the students' behavior. in the classroom is very bad B．the teachers do not have a strong sense of responsibility C．the educational department should be to blame D．the teachers should be able to adjust their teaching methods to the development of society

A．most of the products exchanged at traditional markets are consumer goods B．most of the products bought and sold at traditional markets are industrial goods C．most farmers lived far away from marketplaces and never sold their products directly D．most service industries have not yet developed mature markets for their products 此题为多项选择题。

A．lost chances and opportunities. B．impractical lists and plans. C．dishonesty with ourselves. D．wrong attitudes and mentalities.

A．voices for working women B．appeals to passionate workaholics C．triggers debates among mommies D．praises motivated employees

A．Glenn Mulcaire may deny phone hacking as a crime. B．more journalists may be found guilty of phone hacking. C．Andy Coulson should be held innocent of the charge. D．phone hacking will be accepted on certain occasions.