以下药物属于第二代维A酸的是() A.全反式维A酸 B.维胺酯 C.阿维A酸 D.芳

题型:单项选择题

问题:

以下药物属于第二代维A酸的是()

A.全反式维A酸

B.维胺酯

C.阿维A酸

D.芳香维A酸乙酯

考点:皮肤科住院医师皮肤病治疗学皮肤病治疗学题库
题型:单项选择题

下面不属于难免流产的典型症状的是( )

A. * * 流血增多(似月经量或多于月经量)

B.停经史和早孕反应

C.突感一侧下腹撕裂样剧痛

D. * * 流液

E.见胚胎组织堵塞于宫颈口

题型:单项选择题

关于公共物品提供的偿还性问题,下列说法不正确的是()。

A.市场化提供公共物品不可能是无偿的

B.政府提供公共物品不是全部无偿的

C.政府提供公共物品是绝对无偿的

D.政府提供公共物品可以无偿,也可以有偿

题型:单项选择题

期货交易所( )。

A.可以直接参与期货交易
B.可以间接参与期货交易
C.既可以直接参与期货交易,也可以间接参与期货交易
D.既不可以直接参与期货交易,也不可以间接参与期货交易

题型:单项选择题

In the absence of optimism, we are left with nothing but critics, naysayers, and prophets of doom. When a nation expects the worst from its people and institutions, and its experts focus exclusively on faults, hope dies. Too many people spend too much tie looking down rather than up, finding fault with their country’s political institutions, economic system, educational establishment, religious organizations, and—worst of all—with each other.

Faultfinding expends so much negative energy that nothing is left over for positive action. It takes courage and strength to solve the genuine problems that afflict every society. Sure, there well always be things that need fixing. But the question is, do you want to spend your time and energy tearing things down or building them up

The staging of a Broadway show could illustrate my point. Let’s say a new production is about to open. A playwright has polished the script, investor have put up the money, and the theater has been rented. A director has been chosen, actors have been auditioned and selected, and the cast has been rehearsing for weeks. Set, lighting, and sound engineers have been hard at work. By the time opening night arrives, nearly a hundred people have labored tirelessly—all working long hours to make magic for their audience.

On opening night, four or five critics sit in the audience. If they pan it, the play will probably close in a matter of days or weeks. If they praise it, the production could go on for a long and successful run. In the end, success or failure might hinge on the opinion of a single person—someone who might be in a bad mood on opening night! What’s wrong with this scene In one sense, nothing. Critics have a legitimate role. The problem arises when we make critics our heroes or put them in control of our fate. When we empower the critic more than the playwright, something is wrong. It is much easier to criticize than to create. When we revere the critics of society, we eventually become a society of critics, and when that happens, there is no room left for constructive optimism.

According to the author, critics usually().

A. ignore minor imperfections

B. overemphasize flaws

C. see both sides of a coin

D. pin their hopes on improvements

题型:单项选择题

政治文明是人类智慧的结晶,某班学生对人类政治文明的历程进行探究活动,并把成果做成了展板。请结合材料回答问题

展板一:

古代中国管理地方制度的演变

展板二:

古代希腊“西方政治文明的起源”

展板三:

罗马法“征服世界”

德国著名的法学家耶林说:“罗马帝国曾三次征服世界,第一次以武力,第二次以宗教,第三次以法律。……惟有法律征服世界是最为持久的征服。”

展板四:

近代“开辟人类政治文明的新篇章”

图1-图4分别反映的是哪几个朝代的地方制度?其中哪些制度后来导致了国家的分裂?

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