下列食物中，不能转化为人体活动所需能量的是[ ] A．淀粉 B．葡萄糖 C．食盐

Everyone must go to bed early and get up early, or we won’t be healthy and clever.Is this true? Maybe it is.The body must have enough sleep.Children of your age need ten hours’sleep every day.If you don’t go to bed early, you won’t have enough sleep .Then you can’t think properly and can’t do your work properly.You will not be clever.Some people go to bed late and get up late.This is not good for them.We must go to bed at night when it is dark.The dark helps us to sleep soundly.When the daytime comes, we must get up.This is the time for exercise.If you lack exercise, you will become weak.Exercise keeps a strong body.Exercise helps the blood（血液）flow（流动）around inside the body.This is very important.Blood takes food to all parts of our body.The brain also needs blood, we think with our blood.If we keep our body healthy and take exercise, we can think better.

小题1:If we want to be healthy and clever, we must go to bed _____.

A．late and get up early

B．early and get up late

C．early and get up early

D．late and get up late小题2:Children of your age need ____

A．ten hours’ sleep

B．nine hours’ sleep

C．twelve hours’ sleep

D．eight hours’ sleep小题3:The best time to sleep is when ____.

A．daytimes

B．it is dark

C．we are taking exercises

D．it is late afternoon小题4:Exercise makes the body ___

A．weak

B．clever

C．health

D．strong小题5:Exercise ______

A．makes more blood

B．helps the blood to flow

C．makes food for our blood

D．makes our brain tired

（10分）已知：（1）2ROH→R-O-R+H₂O (R为烃基，R-O-R为醚)

（2）RCH=CH₂+HOCl→RCHOH-CH₂Cl  RCH=CH₂+HOCl→RCHCl-CH₂OH

试根据下列回答下列问题

(1)写出结构简式A ________________，C ________________。

(2)从结构上分析，可与A互为同分异构体的结构简式有：________________。

(3)上述反应中属于取代反应的是________________________________(填反应序号①②⑧④⑤⑥)

(4)写出方程式：D+E=F________________________________________________________六、(本题包括2d、题，共16分) 

下列属于原生金融工具的有( )。

A．国库券

B．基金

C．商业票据

D．期权

出入境列车在到达或者出站前，车间有关人员应当向检验检疫机构提前预报列车预定到达或者发车时间、始发站或者终点站、车次、列车编组情况、行车路线、停靠站台、旅客人数、司乘人员人数、车上有无痢疾发生等事项。( )

法兰连接中，能适用于多种介质、用量最多的法兰垫片为（）垫片。

A．金属

B．缠绕式

C．橡胶

D．橡胶石棉