关于重症肌无力的治疗，下列哪项是错误的：（） A.使用胆碱酯酶抑制剂 B.应用肾上腺

[A] For example, the United States is a major consumer of coffee, yet it does not have the climate to grow any of its own. Consequently, the United States must import coffee from countries (such as Brazil, Colombia and Guatemala) that grow coffee efficiently. On the other hand, the United States has large industrial plants capable of producing a variety of goods, such as chemicals and airplanes, which can be sold to nations that need them. If nations traded item for item, such as one automobile for 10,000 bags of coffee, foreign trade would be extremely cumbersome and restrictive. So instead of barter, which is the trade of goods without an exchange of money, the United States receives money in payment for what it sells. It pays for Brazilian coffee with dollars, which Brazil can then use to buy wool from Australia, which in turn can buy textiles from Great Britain, which can then buy tobacco from the United States.

[B] Foreign trade also occurs because a country often does not have enough of a particular item to meet its needs. Although the United States is a major producer of sugar, it consumes more than it can produce internally and thus must import sugar.

[C] Foreign trade, the exchange of goods between nations, takes place for many reasons. The first, as mentioned above is that no nation has all of the commodities that it needs. Raw materials are scattered around the world. Large deposits of copper are mined in Peru and Zaire, diamonds are mined in South Africa and petroleum is recovered in the Middle East. Countries that do not have these resources within their own boundaries must buy from countries that export them.

[D] In today’s complex economic world, neither individuals nor nations are self-suffi-cient. Nations have utilized different economic resources; people have developed different skills. This is the foundation of world trade and economic activity. As a result of this trade and activity, international finance and banking have evolved.

[E] Finally, foreign trade takes place because of innovation or style. Even though the United States produces more automobiles than any other country, it still imports large numbers of autos from Germany, Japan and Sweden, primarily because there is a market for them in the United States.

[F] For most nations, exports and imports are the most important international activity. When nations export more than they import, they are said to have a favorable balance of trade. When they import more than they export, an unfavorable balance of trade exists. Nations try to maintain a favorable balance of trade, which assures them of the means to buy necessary imports.

[G] Third, one nation can sell some items at a lower cost than other countries. Japan has been able to export large quantities of radios and television sets because it can produce them more efficiently than other countries. It is cheaper for the United States to buy these from Japan than to produce them domestically. According to economic theory, Japan should produce and export those items from which it derives a comparative advantage. It should also buy and import what it needs from those countries that have a comparative advantage in the desired items.

Order:

43（）

选出对加横线的词解释错误的项（单选题）

①彼所将中国人不过十五六万（超过）②一出门，裘马过世家焉（胜过）

③以其境过清（过分，过于）       ④则知明而行无过矣（错误，过失）

⑤闻大王有意督过之（责备）      ⑥今公子故过之（经过）

    地球表层自然地理环境的差异性无处不在，不同的空间尺度存在着不同程度的空间差异。据此完成1—2题。

1、下列地理现象不是反映地理环境差异性的是[ ]

A、从多雨的东南沿海到干旱的西北内陆，植被有明显的变化

B、秦岭南坡太阳辐射强于北坡，植被生长茂盛

C、黄土高原由于植被破坏严重、水土流失，造成千沟万壑的地表形态

D、我国北方农作物以小麦为主，南方以水稻为主

2、下列属于地理环境差异性表现的是 [ ]

A、我国南方地区降水多，耕地以水田为主

B、撒哈拉地区气候干旱，生物具有明显的耐旱特征

C、热带雨林地区降水丰富，植被茂密

D、沿陇海一兰新线，植被有明显变化

环甲肌的作用是（）。

A.缩小声门和喉

B.松弛声带，开大喉

C.紧张声带，缩小喉

D.紧张并拉长声带

E.松弛声带

根据《中国银行股份有限公司员工守则》规定，员工不得利用职务便利为亲属、朋友（）的公司、企业从事经营活动提供商业机会和其他利益。

A、投资或担任高级管理职务

B、投资或任职

C、介绍

D、任职