决策过程中，基于决策目标和条件，分析制定可能采取的若干行动方案，是()。A.信息收集

我国是世界上最早种植水稻和粟的国家，最早种植这两种农作物的分别是_________________________和_____________________原始居民。

病历摘要：患者女性，12岁。车祸致双下肢广泛撕脱伤，急送手术室。神志恍惚，血压45／30mmHg，脉搏160次／min。无哮喘史。空腹。

最必要的监测是（）。

A.SpO₂、ECG

B.血压、SpO₂

C.血压、心率

D.血压、呼吸

E.脉搏、SpO₂

决策支持系统(DSS)是以信息技术为手段，应用了决策科学及有关学科的理论与方法，建立起来的人机交互方式的信息系统。下列选项中，最符合对决策支持系统描述的是( )。

A．每一个决策支持系统通常都具有广泛的适用性
B．决策支持系统用于代替决策者决策
C．决策支持系统用于解决结构化问题
D．决策支持系统注重用户自己的学习

Today, as with so many days, I found myself stuck in a traffic jam, and I thought I’d share my little trick for keeping calm when it seems like you are creeping along(缓慢行进).

The key to understand is that traffic jams don’t take as long as they seem to. It’s just that when we are in a hurry, and think we should be moving, but time appears to pass more than it does. To really show this, the next time you are stopped at a light that always seems to take forever to change, try to do something with your phone, your laptop, whatever you have available, and watch how much briefer the light seems.

When you enter a jam on the highway, reset your trip plan and care the time. Then, when you clear the jam, and are normally on your way again, care the distance of the jam, and the time it took to get through it. For my experience today, it took me 6 minutes to go 2 miles. Now, it happens to be mathematically convenient that your average speed on the highway is about 60 mph, or a mile per minute. So to estimate what time the jam actually cost you, just take your traffic jam passing time, and subtract（减去） the distance covered, which we know is a good estimate of the time it would have taken with no traffic jam. In my case, all that added up to 6-2="4" minutes.

Do this for every jam you are subjected to every time and watch how much less stressful they become once you understand how little time you are really losing.

小题1:We can infer from Paragraph 1 and 2 that ________.

A. there was no traffic jam in the past

B. modern people are under great pressure

  time passes much faster during traffic jams

D. people in traffic jams are usually impatient

小题2:What does the writer suggest when caught in traffic jams?

A. Playing a trick on other drivers.

B. Figuring out how much time the jam actually cost you.

  Doing some math problems.

D. Informing the boss about the delay.

小题3:The underlined phrase “subjected to” in the last paragraph probably means ________.

A. experience          B. avoid                admit                     D. control

小题4: What’s the main idea of the passage?

A. Math is closely connected with life.

B. Stress is always a bad thing.

  Traffic jam is not as bad as you think.

D. There is no use complaining about traffic jams.

欲把背景层转换为普通的图像图层，以下哪种做法是可行的。（）

A、通过拷贝粘贴的命令可将背景层直接转换为普通图层

B、通过“图层”菜单中的命令将背景层转换为图层

C、双击图层调板中的背景层，并在弹出的对话框中输入图层名称

D、背景层不能转换为其它类型的图层