李强骑自行车去学校,每分钟行15千米,25分钟行多少千米?1小时行多少千米?

题型:解答题

问题:

李强骑自行车去学校,每分钟行
1
5
千米,25分钟行多少千米?1小时行多少千米?
考点:整数,小数,分数,百分数和比例的复合应用题
题型:解答题
阅读下面短文,根据内容完成表格中所缺信息。(每空一词) 
It is said that the eyes are the windows of our soul. Beautiful and bright eyes not only show a good health but also make you look very attractive. However, to have healthy eyes you have to look after them properly. Yours eyes need everyday attention.
Pay more attention to your diet. First, eat food that is good for your eyes. They are fresh fruits and vegetables as fish, eggs, and milk. Besides, a regular amount of vitamins A and B2 should also be taken.
A regular and enough sleep is necessary. It relaxes the eye muscles(肌肉)and gives them the rest required. Sleep not only helps the body to repair its tired tissues (组织). Usually, you must sleep for at least seven to eight hours every day. Loss of sleep can give you dark circles under the eye.
You must exercise your eyes every day. Blink (眨眼) yours eyes at regular periods(周期), which makes the eyeballs watery, and gives them a good wash.
We use our eyes in many unnoticeable and wrong ways. Fox example, if a small thing goes into our eye we start rubbing it, which is wrong. Rubbing can cause damage(伤害) to your eyes. Don’t read or write in poor or bright sunlight. Always use sunglasses as sunlight can cause eye tiredness. Light should not shine directly(直接)in your eyes. Reading, writing, watching television or working on the computer for too long without a rest can also cause eye tiredness.
Remember to always look after God’s most beautiful gift to you. Your life will be very colourless without your eyes.
小题1:  to keep your eyes healthy
小题2:
●Eating food good for your eyes,  小题3: as fresh fruits, vegetables and food high in protein(蛋白质).
●Taking a proper amount of Vitamins A and B2 regularly.
Sleep
●Having a regular and enough sleep is   小题4:
●Reducing loss of  小题5: .
Eye exercising
●Having your eyes exercised every day.
 小题6: your eyes at regular periods makes the eyeballs watery .
Eye using
●It’s  小题7:  to rub your eye when something goes in.
●Read or write in soft sunlight.
●Light should never shine in your eyes 小题8:  .
●Take a 小题9: after reading, writing, watching TV or working on the computer for too long .
Remember to always take 小题10: of God’s most beautiful gift to you
题型:解答题

龈谷()

A.游离龈与牙面之间的间隙

B.每个牙的颊舌侧 * * 在邻面的接触区下方汇合处略凹下

C.该处上皮角化、无钉突

D.对局部刺激的抵抗力较强

E.牙周炎不易在此处发生

题型:解答题

海关权力属于行 * * 力,与其他国家权力和社会组织.个人的权利不同,主要有()

A.特定性

B.复合性

C.强制性

D.自由裁量性

题型:解答题

风险的概念起源于()。

A.法国

B.意大利

C.英国

D.美国

题型:解答题

催化剂加快了正反应的速度,对逆反应的速度则()。

A.降低

B.不变

C.减为零

D.加快

更多题库