在结构层次上，鲫鱼有而水稻没有的是 A．组织 B．细胞 C．系统 D．器官

Many children love to play with snow in winter. But Long Chuan has come to hate it.

This year his hometown suffered from snowstorms (遭受暴风雪) for nearly a month. The heavy snow stopped cars and trains, broke the electricity (电) tower and turned tap water to ice.

Every day Long Chuan had to walk several kilometers to carry drinking water. “I couldn’t ride a bike and it took me 3 hours to walk to school. I can’t remember how many times I slipped (滑倒) on the hard ice, ” said Long Chuan.

Long is not alone. This year millions of people in central and southern China had a freezing winter without enough water and electricity. The biggest snowstorms in 50 years killed more than 100 people. They also cost the country 111.1 billion yuan.

Experts (专家) say a special type of climate condition (气候条件), La Nina, caused the storms. During a La Nina, the water in the Pacific Ocean (太平洋) near the equator (赤道) becomes colder than usual. It changes the weather around the world.

Besides China, Canada, the US and Middle Eastern countries also met with heavy snowstorms this winter. The special climate caused the recent flooding (洪水) in Australia, too.

However, experts say that people have destroyed the environment (环境). Global warming (全球变暖) may be causing these terrible weather events to happen more and more often.

小题1:What took place in Long Chuan’s hometown last winter?

A．Earthquake.

B．Flooding.

C．Traffic Accident.

D．Heavy snowstorms.小题2:During the snowstorms this year, Long Chuan  __________.

A．had to walk to carry drinking water

B．had to ride a bike to school

C．couldn’t go to school on foot

D．couldn’t play with snow小题3:The heavy snow ____________ this year.

A．killed millions of Chinese

B．cost China 111.1 billion yuan

C．used too much electricity

D．lasted more than three hours小题4:We can tell from the story that __________ .

A．China is the only country which suffered from the heavy snow

B．La Nina is said to have caused the snowstorms

C．La Nina also caused hot summer in Australia

D．the snowstorms have nothing to do with global warming小题5:The passage tells people around the world ___________.

A．to wear more clothes in winter

B．to stop riding bikes on the hard ice

C．to protect (保护) the environment

D．to save water and electricity

香料烟适熟采收与烟叶质量有密切关系，若香料烟过熟采收，调制后烟叶（）

A.身份薄产量降低、香气损失严重

B.含青度较高．青杂气重．香气不足

C.挂灰较多．杂气增加

D.蒸片较多．质量下降

根据《支付结算办法》的规定，支票的提示付款期限最长不得超过()。

A．5日

B．10日

C．20日

D．30日

发生自然灾害、传染病流行、突发重大伤亡事故以及其他严重威胁人民生命健康的紧急情况时，不服从卫生行政部门调遣的，由卫生行政部门给予的处理是（）

A.暂停执业活动3～6个月

B.暂停执业活动6个月～1年

C.给予行政处分

D.吊销医师执业证书

E.追究刑事责任

钢丝钳由（）和钳柄两部分组成。

A.钳口

B.齿口

C.刀口

D.钳头