当年形成的会计档案在会计年度终了后，可暂由本单位会计部门保管一年；( )

计算变压器的有功损耗应包括空载损耗和短路损耗。

A bicycle helmet is a helmet intended to be worn while riding a bicycle．They are designed to reduce impacts to the skull(头颅骨) of a cyclist in falls．However, there is a debate on whether helmets are useful for road cyclists．

The World Health Organization promotes the use of helmets as a strategy for preventing people' s heads from being injured by bicycle crashes or falls．Use of cycling helmets is supported by numerous groups in the United States. US-based cycling activist John Forester suggests that helmet wearing could prevent 300 deaths a year in the United States out of a total of 1530 preventable deaths．Public Health Law Research reports that there is enough evidence to establish that bicycle helmet laws are an effective public health intervention(干涉)aimed to reduce the number of head-related deaths．Received opinion in some countries is that bicycle helmets are useful and that every cyclist should wear one. Professional bodies elsewhere have agreed, such as the Swiss Council for Accident Prevention．

Mayer Hillman, a transport and road safety analyst from the UK, does not support the use of helmets, reasoning that they are of very limited value in the event of a collision（碰撞） with a car. He compares it to drawing conclusions on whether it is worthwhile to buy lottery tickets. Cyclists' representative groups complain that focus on helmets diverts(转移) attention from other issues which are much more important for improving bicycle safety, such as road danger reduction．The UK's largest cyclists' organization, the CTC, believes that the "overall health effects of compulsory helmets are negative.'' The same report estimated(估计) that universal helmet use would save the life of one child aged 0 to 15 each year．

Up to now, the debate is with no consensus（共识）, but an organization has published a review of studies in 2011, saying there is a good deal of evidence that those wearing a helmet are more likely to crash than bareheaded cyclists．

在括号里填上合适的词语。    

(      )的单衣    (      )的眼神     

(      )地看着    (      )地诉说     

(      )得唱歌    (      )得拍手

智慧背囊（根据课文内容填空）。

1．雾锁山头山锁雾，___________________。

2．绿水本无忧，___________________；___________________，为雪白头。

3．水水山山，___________________；晴晴雨雨，___________________。

4．那条白线很快地向我们移来，逐渐拉长，_________，_________。再近些，只见白浪翻滚，形成一堵_________的水墙。浪潮越来越近，犹如__________________，浩浩荡荡地飞奔而来；那声音如同_________，好像大地都被震得颤动起来。

平屋面坡度不大于1/10的屋面易受雷击的部位为（）。

A.檐角

B.屋角

C.屋脊

D.屋檐

E.女儿墙