纸质会计档案移交时应当保持原卷的封装。（）

When is your birthday?    It's _________.      [ ]

A. Sep 1th                     

B. Sep 1st                   

C. the Sep 1

国家利益的至上性是处理（）关系的最高准则。

A.政府与人民

B.上下级政府

C.不同地区

D.国家间

气温逐渐升高，甲安装队为A小区安装66台空调，乙安装队为B小区安装60台空调，两队同时开工且恰好同时完工，已知甲队比乙队每天多安装2台，求甲队. 乙队每天各安装多少台空调？

小明骑自行车去外婆家，原计划用5小时30分，由于途中有千米的道路不平，走这段路时，速度相当于原计划速度的，因此，晚到了12分钟，请问小明家和外婆家相距多少千米()

A．33

B．32

C．31

D．34

Fish species are expected to shrink in size by up to 24% because of global warming, say scientists.

The scientists argue that failure to control greenhouse gas emissions will have a greater effect on marine ecosystems than previously thought. Previous research has suggested that changing ocean temperatures would affect both the distribution and the reproductive abilities of many species of fish. This new work suggests that fish size would also be heavily affected.

The researchers built a model to see how fish would react to lower levels of oxygen in the water. As ocean temperatures increase, so do the body temperatures of fish. But, according to lead author, Dr William Cheung, from the University of British Columbia, the lower level of oxygen in the water is key. Warmer waters could decrease ocean oxygen levels and greatly reduce fish body weight. On the other hand, rising temperatures directly increase the metabolic rate of the fish's body function. This leads to an increase in oxygen demand for normal body activities. So the fish will run out of oxygen for growth at a smaller body size.

The research team also used its model to predict fish movements as a result of warming waters. The group believes that most fish populations will move towards the Earth's poles at a rate of up to 35km per decade. "So in, say, the North Sea," says Dr Cheung," one would expect to see more smaller-body fish from tropical waters in the future."

Taking these factors into consideration, the research team concludes that fish body size will shrink between 14% and 24%, with the largest decreases in the Indian and Atlantic oceans.

When compared with actual observations of fish sizes, the model seems to underestimate what's actually happening in the seas. The researchers looked at two case studies involving North Atlantic cod and haddock. They found that recorded data on these fish showed greater decreases in body size than the models had predicted.

Dr Alan Baudron, from the University of Aberdeen, UK, believes smaller-sized fish could seriously affect the ability of fish to reproduce. "Smaller fish produce fewer and smaller eggs which could affect the reproductive potential of fish stocks," he said.

小题1:What's the main idea of the passage?

A．Global warming makes fish smaller.

B．Global warming makes fish decrease in numbers.

C．Global warming affects the fish distribution.

D．Global warming affects the ability of fish to reproduce.小题2:What is the key factor making the fish smaller now?

A．The rising body temperatures.

B．The lower level of oxygen in the water.

C．The increasing metabolic rate.

D．The normal body activities.小题3:We can infer that as ocean temperatures increase          .

A．more big fish will be born in the sea

B．fish tend to swim towards the shore

C．fish tend to move towards the warm areas

D．fish tend to move towards the colder areas小题4:What does the underlined word "underestimate" mean?

A．make an exact prediction of

B．make too low an estimate of

C．make too high an estimate of

D．make a careful study of