患者，女，20岁，诉自小牙齿不好，要求牙体美容。检查：全口牙齿均有Ⅰ～Ⅱ度磨耗，牙冠

发布时间：2017-07-11 05:00 │ 来源：www.tikuol.com

题型：单项选择题

问题：

患者，女，20岁，诉自小牙齿不好，要求牙体美容。检查：全口牙齿均有Ⅰ～Ⅱ度磨耗，牙冠均呈微黄色，釉质缺损较严重，牙本质暴露，探诊、温度测试均无明显反应。患者诉外祖母和母亲的牙齿也有类似的情况。

拟诊

A．釉质发育不全
B．四环素牙
C．遗传性乳光牙本质
D．牙本质过敏
E．磨耗

考点：口腔五官科主治医师口腔内科专业知识口腔内科学专业知识

题型：单项选择题

下列各项，不主疼痛的脉象是（）。

A.滑脉

B.伏脉

C.动脉

D.弦脉

E.紧脉

查看答案

题型：单项选择题

一物体做平抛运动，图中的曲线为它的运动轨迹．物体通过轨迹上P点时的速度方向为（　　）

A．Pa方向

B．Pb方向

C．Pc方向

D．Pd方向

查看答案

题型：单项选择题

下面三幅图中，图A为南疆公路旁的草方格沙障，图B为行走在沙丘上的驼队,图C为兰州郊区种植白兰瓜的砂田（含砂砾层）。据图回答下列各题。

小题1:据图文信息可以推断

A．三地降水均小于200毫米

B．图A地区中河流径流量年际变化较小

C．图B中风力侵蚀作用明显

D．图B中盛行风向为北风小题2:下列关于图示景观，叙述错误的是

A．图A中的沙障能增加地表粗糙度，削减风力，从而保护公路不被风沙侵袭

B．图B中的驼队沿等高线行走，虽线路较长，但省力且视野开阔，安全性好

C．图C中的砂砾层能减少土壤水分蒸发，增强水的渗透能力和增大昼夜温差

D．三地农业生产过程中不合理的人类活动容易导致土地荒漠化和次生盐碱化

查看答案

题型：单项选择题

肾病综合征患者尿中蛋白含量大多（）

A.<1g/d

B.1～2g/d

C.2～3g/d

D.3～3.5g/d

E.>3.5g/d

查看答案

题型：单项选择题

Passage One

Despite much loose talk about the new global economy, today’s international economic integration is not unprecedented. The 50 years before the first world war saw large cross-border flows of goods, capital and people. That period of globalization, like the present one, was driven by reductions in trade barriers and by sharp falls in transport costs, thanks to the development of railways and steamships. The present surge of globalization is in a way, a resumption (恢复) of that previous trend. The earlier attempt at globalization ended abruptly with the first world war, after which the world moved into a period of fierce trade protectionism and tight restrictions on capital movement. During the early 1930s, America sharply increased its tariffs, and other countries retaliated (报复), making the Great Depression even greater. The volume of world trade fell sharply. International capital flows virtually dried up in the interwar period as governments imposed controls to try to insulate (隔离) their economies from the impact of a global slump.
Capital controls were maintained after the second world war, as the victors decided to keep their exchange rates fixed on arrangement known as the Bretton Woods System, named after the American town in which it was approved. But the big economic powers also agreed that reducing trade barriers was vital to recovery. They set up the General Agreement on Tariffs and Trade (GATT), which organized a series of negotiations that gradually reduced import tariffs. GATT was replaced by the World Trade Organization (WTO) in 1995. Trade flourished.
In the early 1970s, the Bretton Woods System collapsed and currencies were allowed to float against one another at whatever rates the markets set. This signaled the rebirth of global capital market. America and Germany quickly stopped trying to control the inflow and outflow of capital, Britain abolished capital controls in 1979 and Japan (mostly) in 1980. This is part of the reason why continental Europeans tend to worry more about the power of global capital markets. America has been exposed to them for much longer.
Two forces have been driving these increased flows of goods and money. The first is technology. With the costs of communication and computing falling rapidly, the natural barriers of time and space that separate national markets have been falling too. The second driving force has been liberalization. As a result of both the GATT negotiations and unilateral (单方面的，单边的) decisions, almost all countries have lowered barriers to foreign trade. Most countries have welcomed international capital as well.

World trade flourished after W W Ⅱ due to ______ .

A．capital controls

B．fixed exchange rates

C．reduction in trade barriers

D．establishment of WTO

查看答案

更多题库