会使制冷压缩机缸头过烫的是：（）。A.余隙过大 B.运转时间太长 C.膨胀阀开度大

当房地产经纪企业实力发展到一定程度时，( )是房地产经纪人获得房源信息的直接渠道。

A．人际关系网络
B．老客户推荐
C．直接接触
D．门店接待法

Are you sometimes a little tired and sleepy in the early afternoon? Many people feel this way after lunch. They may think that eating lunch is the cause of the sleepiness. Or, in summer, they may think it is the heat. However, the real reason lies in their bodies. At that time---about eight hours after you wake up, your body temperature goes down. This is what makes slow down and feel sleepy. Scientists have tested sleep habits in experiments where there was no night or day. The people in experiments almost always followed a similar sleeping pattern(模式). They slept for one long period and then for one short period about eight hours later.

In many parts of the world, people take naps(小睡) in the middle of the day. This is especially true in warmer climates, where the heat makes work difficult in the early afternoon. Researchers are now saying that _____________ are good for everyone in any climate. A daily nap gives one a more rested body and mind and therefore is good for health in general. In countries where naps are traditional, people often suffer less from heart disease.

Many working people, unluckily, have no time to take naps. Though doctors may advise taking naps, employers(雇主们) do not allow it! If you do have the chance, however, here are a few tips about making use of your nap. Remember that the best time to take a nap is about eight hours after you get up. A short sleep too late in the day may only make you feel more tired and sleepy afterward. This can also happen if you sleep too long. If you do not have enough time, try a short nap--- even ten minutes sleep can be helpful.

小题1: Why do people feel sleepy in the early afternoon according to the passage?

___________________________________________________________________________

小题2: 在文中第二段空白处填写一个单词，使得句意完整、上下文通顺。

Researchers are now saying that _____________ are good for everyone in any climate.

小题3: 请把划线部分句子翻译成汉语。

____________________________________________________________________________

小题4: If you get up at 6:30 am, what is the best time to take a nap?

____________________________________________________________________________

小题5: Please give a title for the passage.

_____________________________________________________

钟老师与他人合资成立的税务师事务所于2010年顺利开张，进入2011年发展很是迅速，场所、车辆皆不敷使用，相继采取下列措施：①事务所委托某外贸公司进口九成新凌志小轿车一辆，海关核定关税完税价格为20万元人民币，该车已交付事务所使用。②钟老师将原值20万元的一套自有旧居自年初提供给事务所使用。（其他相关资料：①轿车进口关税适用税率为25%、消费税适用税率为5%；②计算房屋余值的扣除比例为30%）要求：根据上述资料，按序号回答下列问题，如有计算，每问需计算出合计数。

计算进口小轿车使用环节应缴纳的车辆购置税。

为了分析估计在防雷装置和做了等电位连接的装置中的电流分布，可以将雷电流看成什么设备？（）

A.电压发生器

B.电流发生器

C.稳压电源

D.稳流电源

下列关于人类遗传病的说法正确的是（）

A.一个家族中仅一代人出现的疾病不是遗传病，几代人出现的疾病就是遗传病

B.出生前就具有的疾病一定是遗传病，出生后才具有的的疾病不是遗传病

C.遗传病是由遗传物质的改变引起的

D.单基因遗传病是由一个致病基因引起的，如唇裂、青少年型糖尿病等