银屑病根据病期和皮损部位可选用以下哪些外用药治疗：（） A．焦油制剂 B．维A 酸类

If you left your book on the table overnight, you would find the following morning that it was still exactly when you had left it, provided nobody had moved it. If a ball is made to roll on a very smooth surface, it will roll a long distance unless something stops it or changes its direction. This tendency of an object to remain at rest unless something moves it and to continue moving unless something stops it is known as the Law of Inertia.
The following examples show the truth of this law.

• (a) Put a table-cloth on a table and arrange a pile of books on it. Hold one edge of the tablecloth and pull it quickly. The table-cloth will come off, leaving the pile of books undisturbed.
• (b) Place a small piece of cardboard on an open jar and place a coin on it directly over its mouth. Use one finger to flick the piece of cardboard away. You will notice that the coin drops into the jar.
• (c) Sitting in a car which starts suddenly, you feel you are jerked backwards. In fact, you are not jerked backwards. Your lower half, which is in contact with the cushion, is forced to move forward with the car, and the upper part of your body, which remained at rest, is left behind.

Sitting in a car which stops suddenly, you feel that you are ______.

A．at rest

B．left behind

C．jerked forward

D．jerked backwards

关于糖尿病酮症酸中毒的治疗，叙述正确的有（）。

A.充分补液

B.持续静脉滴入小剂量胰岛素

C.积极治疗电解质紊乱

D.尽早使用碳酸氢钠纠正酸中毒

E.第1个24h输液总量4000~5000ml，严重失水者可达6000~8000ml

“和而不同”思想是中国几千年智慧的珍贵结晶之一，把它运用于国际关系领域是一个创造。“和而不同”思想体现了我国政府处理对外关系时

①主张不同国家在和平竞争中取长补短，在求同存异中共同发展②应维护世界的多样性，提倡国际关系民主化和发展模式多样化③主张各国的事情应由各国人民自己决定，世界上的事情应由各国平等协商处理④主张世界应向多极化方向发展

A．①②④

B．①②③

C．②③④

D．①③④

患儿，12岁。表现为头痛，剧烈频繁的呕吐，共济失调，脑神经麻痹，该患儿最可能患的是（）

A.脑膜瘤

B.髓母细胞瘤

C.垂体肿瘤

D.形状胶质细胞瘤

E.神经鞘瘤

如果网络的传输速度为28.8kpbs，要传输2MB的数据大约需要的时间是______。

A．10分钟

B．1分钟

C．1小时10分钟

D．30分钟