解下列方程(1)2x-(x+3)=-x+3(2)x+x+53=2+3x-12.

题型:解答题

问题:

解下列方程
(1)2x-(x+3)=-x+3
(2)x+
x+5
3
=2+
3x-1
2
考点:一元一次方程的解法
题型:解答题

某妇女,停经38周, * * 少量流血,B超示胎盘与子宫壁之间有2个液体暗区,胎心音测胎心率162次/分,肛查宫口开大1cm,宫缩乏力。对该孕妇的处理最佳的是()。

A.勿需做特殊处理

B.住院观察,吸氧

C.静滴催产素

D.剖宫产

E.绝对卧床休息,头低足高位

题型:解答题

甲、乙两小分队进行代号为“猎狐”的军事演习,指挥部通过现代通信设备,在荧屏上观察到两小分队的具体行军路线如图所示。两小分队同时同地由O点出发,最后同时捕“狐”于A点。下列说法正确的是

[ ]

A.小分队行军路程s=s

B.小分队平均速度v=v

C.小分队的平均速率相等

D.图象表示的是位移-时间图象

题型:解答题

主题数据库是一类重要的数据环境,以下是关于数据环境特点的描述。  Ⅰ.简单、容易实现  Ⅱ.具有较低的维护成本  Ⅲ.提高了应用开发效率  Ⅳ.与应用项目对应  Ⅴ.独立于应用项目  其中属于主题数据库优点的是

A.Ⅱ、Ⅲ和Ⅳ

B.Ⅱ、Ⅲ和Ⅴ

C.Ⅰ、Ⅲ和Ⅳ

D.Ⅰ、Ⅲ和Ⅴ

题型:解答题

It was the summer of 1965. Deluca, then 17, visited Peter Buck, a family friend. Buck asked Deluca about his plan for the future. “I'm going to college, but I need a way to pay for it,” Deluca recalls saying, “Buck said, ‘you should open a sandwich shop.’”

That afternoon, they agreed to be partners. And they set a goal: to open 32 stores in ten years. After doing some research, Buck wrote a check for $1,000. Deluca rented a storefront (店面) in Connecticut, and when they couldn't cover their start­up costs, Buck kicked in another $1,000.

But business didn't go smoothly as they expected. Deluca says, “After six months, we were doing poorly, but we didn't know how badly, because we didn't have any financial controls.” All he and Buck knew was that their sales were lower than their costs.

Deluca was managing the store and to the University of Bridgeport at the same time. Buck was working at his day job as a nuclear physicist in New York. They'd meet Monday evenings and brainstorm ideas for keeping the business running. “We convinced ourselves to open a second store. We figured we could tell the public, ‘We are so successful; we are opening a second store.’” And they did—in the spring of 1966. Still, it was a lot of learning by trial and error.

But the partners' learn­as­you­go approach turned out to be their greatest strength. Every Friday, Deluca would drive around and hand­deliver the checks to pay their supplies. “It probably took me two and a half hours and it wasn't necessary but as a result, the suppliers got to know me very well, and the personal relationships established really helped out,” Deluca says.

And having a goal was also important. “There are so many problems that can get you down. You just have to keep working toward your goal,” Deluca adds.

Deluca ended up founding Subways Sandwich, the multimillion­dollar restaurant chain.

小题1:Which of the following is true of Buck?

A.He put money into the sandwich business.

B.He was a professor of business administration.

C.He was studying at the University of Bridgeport.

D.He rented a storefront for Deluca.小题2:What can we learn about their first shop?

A.It stood at an unfavorable place.

B.It lowered the prices to poor management.

C.It made no profits due to poor management.

D.It lacked control over the quality of sandwich.小题3:They decided to open a second store because they ________.

A.had enough money to do it

B.had succeeded in their business

C.wished to meet the increasing demand of customers

D.wanted to make believe that they were successful小题4:What contributes most to their success according to the author?

A.Learning by trial and error.

B.Making friends with supplies.

C.Finding a good partner.

D.Opening chain stores.

题型:解答题

关于肠梗阻的腹部体征,下列哪项是正确的()

A.可见肠型和蠕动波

B.单纯性肠梗阻因肠管膨胀可有不同程度压痛

C.肠鸣音减弱或消失即可确定肠梗阻之诊断

D.绞窄性肠梗阻时,可有固定压痛

E.蛔虫性肠梗阻时,常在腹中部能触及条索状团块

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