“元亨利贞”是（）提出来的。A、王安石B、王明阳C、程颐D、朱熹

唐太宗说：“舟所以比人君，水所以比黎庶，水能载舟，亦能覆舟。”对这句话的理解正确的是[ ]

A．皇帝和老百姓之间有着本质的不同之处

B．皇帝和老百姓之间有着不可调和的矛盾

C．皇帝和老百姓的根本利益是基本一致的

D．皇帝需要老百姓的支持才能稳固其统治

压浆拌浆设备采用高速拌浆机转速不小于（）（新规范）R/min.

A、500

B、600

C、700

D、1000

阅读短文，并按照题目要求用英语回答问题。

I’m a 34-year-old man, married, lived in a nice house, and have a successful career as an educational consultant. But my life was not always so great. I had a learning disability from an early age. I went to a special school where I got plenty of extra help. Still, I suffered the rest of my school days in public schools.

My life improved remarkably when I discovered art. The art world gave me a chance to express myself without words. I went to a workshop and gradually got good at making things with clay(黏土). Here I learned my first important lesson: disabled as I was in language. I could still be smart and well express myself with clay. And my confidence came along.

I got my next lesson from rock climbing. It was a fun thing but I was scared from the start. I soon noticed it wasn’t a talent thing; it was practice. So I did it more. After about five years of climbing, I found myself in Yosemite Valley on a big wall. I learned that if you fall in love with something and do it all the time, you will get better at it.

Later I decided to apply my previous experience to learning how to read and write. Every day I practiced reading and writing, which I used to avoid as much as possible. After two hard years, I was literate.

Having gone through the long process with art, rock climbing, and reading and writing, now I’ve got to a point in my life where I know I am smart enough to dive into an area that is totally unknown, hard, but interesting.

How does the author’s story inspire you to overcome difficulties in life? Put it in your own words. (No more than 20 words)

汽车正在走进千家万户，在给人们的出行带来方便的同时也带来了安全隐患.行车过程中，如果车距较近，刹车不及时，汽车将发生碰撞，车里的人可能受到伤害，为了尽可能地减轻碰撞引起的伤害，人们设计了安全带，假定乘客质量为70 kg，汽车车速为90 km/h，从踩下刹车到完全停止需要的时间为5 s，安全带对乘客的作用力大小约为(不计人与座椅间的摩擦)(   )

A．450 N

B．400 N

C．350 N

D．300 N

患者女性，30岁，产后28天， * * 突然大量出血，色红，有血块，伴有头晕、心慌。妇科检查：子宫大而软，宫口松弛，鲜血自宫腔流出，可见残留的胎盘组织。应诊断为（）。

A.功能性子宫出血

B.月经过多

C.晚期产后出血

D.产后出血

E.以上均不是