本票是一种要式证券，本票上无需记载（）。 A.无条件支付的承诺 B.表明"汇票"的字

假如你要查询我国最早的数学资料，你应该查阅下列哪一名著[ ]

A．《九章算术》

B．《缀术》

C．《齐民要术》

D．《水经注》

For most people, shopping is still a matter of wandering down the street or loading a cart in a shopping mall. Soon, that will change. Electronic commerce (trade) is growing fast and will soon bring people more choices. There will, however, be a cost: protecting the consumer from being cheated will be harder. Many governments therefore want to apply street regulations to the electronic world. But politicians would be wiser to see cyberspace as a basis for a new era of corporate self-regulation.

Consumers in rich countries have grown used to the idea that the government takes responsibility for everything from the stability of the banks to the safety of the drugs or their rights to refund when goods are faulty. But governments cannot enforce national laws on businesses whose only presence is on the screen. Even in a country where a clear right to compensation exists, the on-line customer in Tokyo, say, can hardly go to New York to get a refund (退款) for a clothes purchase.

One answer is for government to cooperate more: to recognize each other’s rules. But that requires years of work and volumes of detailed rules. And plenty of countries have rules too fanciful for sober countries to accept. There is, however, another choice. Let the electronic businesses do the regulation themselves. They do, after all, have a self-interest in doing so.

In electronic commerce, a reputation for honest dealing will be a valuable competitive asset. Governments, too, may compete to be trusted. For instance, customers ordering medicines on- line may prefer to buy from the United States because they trust the rigorous screening of the Food and Drug Administration; or they may decide that the FDA’s rules are too strict, and buy from Switzerland instead.

Customers will still need to use their judgment, but precisely because the technology is new, electronic shoppers are likely for a while to be a lot more cautious than customers of the normal sort. And the new technology will also make it easier for them to complain when a company lets them down. In this way, at least, the advent(出现) of cyberspace may argue for fewer consumer protection laws, not more.

小题1:In case an electronic shopper bought faulty goods from a foreign country, what could he do?

A．Refuse to pay for the purchase.

B．Go to the seller and ask for a refund.

C．Appeal to consumer protection law.

D．Complain about it on the Internet.小题2:In the author’s view, businesses would place a high emphasis on honest dealing because in the electronic world _______.

A．international cooperation would be much more frequent

B．consumers could easily seek government protection

C．a good reputation is a great advantage in competition

D．it would be easy for consumers to complain小题3:We can infer from the passage that in licensing new drugs the FDA in the United States is______.

A．very quick

B．very cautious

C．very slow

D．rather careless小题4:According to the author, what will be the best policy for electronic commerce?

A．Self-regulation by the business.

B．Strict Consumer protection laws.

C．Close international cooperation.

D．Government protection.

数据加密技术可以分为3类，下列不属于数据加密技术的是以下哪一种

A．对称型加密

B．不对称型加密

C．可逆加密

D．不可逆加密

We shall fulfill your order according to the remarks in our last letter if we do not hear from you ______ the contrary.

A．in
B．to
C．on
D．with

近一年来，全国人大先后组织了6个执法检查组，对全国人大制定的有关法律的实施情况进行检查。同时，为进一步提高预算审查工作质量，增加预算监督力度，全国人大常委会还增设了预算工作委员会。以上材料说明全国人民代表大会（）。

A.既是权力机关，也是执行机关

B.既是立法机关，也是执法机关

C.既行使立法权，也行使监督权

D.既产生行政机关，也监督行政机关