简述交流牵引电机维护作业结束后要达到的要求。

建构主义学习理论的基本观点有哪些?

赵某1998年8月1日因盗窃罪曾被判处有期徒刑5年，刑罚执行3年后被假释。假释后，赵某长期未能找到一个令自己满意的工作，而现在从事的工作太辛苦，挣钱又太少，为过上有钱的日子，于是自2002年10月至2004年3月，赵某多次参与赌博，以此作为自己的第一职业。近两年间，就获利达到3万元，均用于个人挥霍。由于赵某的赌友钱某欠其赌债2万余元，日久不还，2004年5月的一天，赵某等候在小学门口，将钱某刚放学的8周岁的男孩骗至车上强行带走，送到邻县一亲戚孙某家，然后请李某代其写给钱某一封措辞严厉的信，威胁说：钱某必须在3天内送还5万元(2万元赌债并且另加3万元利息)，否则，将其孩子卖掉抵债。钱某向公安机关告发，小孩被解救。另外，在案发后被逮捕羁押期间，赵某如实主动地揭发了邻居周某的盗窃犯罪活动(另案处理)，经查证属实。请回答下列问题：

赵某绑架钱某小孩的行为如何定性为什么

在Visual FoxPro中，根据变量的作用域来分，内存变量可分为( )。

A．字段变量、数组变量和局部变量

B．字段变量、数组变量和私有变量

C．数组变量、局部变量和全局变量

D．私有变量、局部变量和全局变量

The world is undergoing tremendous changes. The rise of globalization, both an economic and cultural trend that has swept throughout the world, has forged new ground as we enter the 21st century. But are the effects of globalization always positive Some say no.

Michael Tenet, head of the International Institute for Foreign Relations in Atlanta, is worried about current resentment throughout the world toward the rise of globalization. "Ever since the 1980s and the economic collapse of the Asian Tigers in the late 1990s, there has been a re-evaluation of the role of globalization as a force for good," he said. "Incomes in many countries has declined and the gap between the most rich and the most poor has been aggravated. Without further intervention by governments, we could see a tragedy expressed in an increased level of poverty throughout the Latin America and Asia. " Yet George Frank, an influential economist who works on Wall Street, sees no such danger. "Economic liberalization, increased transparency and market-based reforms have positive effect in the long run, even if market mechanisms can produce short-term destabilization problems," he said. "What is most important is that barriers to trade continue to fall so that active competition for consumer goods reduces prices and in turn raises the average level of income. "

Others feel that globalization’s cultural impact may be more important than its economic implications. Janice Yawee, a native of Africa, feels ply that globalization is undermining her local culture and language. "Most of the world’s dialects will become extinct under globalization. We’re paving the world with McDonald’s and English slang. It tears me up inside," she said.

Governments of different countries have had mixed responses to the wave of globalization. The United States is generally seen as an active proponent of greater free trade, and it certainly has enormous cultural influence by virtue of its near monopoly on worldwide entertainment. But other countries, most notably in Europe and developing nations, have sought to reduce the impact that globalization has on their domestic affairs.

"When I was a boy we had very little to speak of," says one Singaporean resident. "Now our country has developed into a booming hub for international finance. " Others, however, are not so optimistic. "Globalization is an evil force that must be halted," a union official at a car plant in Detroit recently commented, "It’s sucking away jobs and killing the spirit of our country.

When mentioning Janice Yawee, the author is talking about（）

A. her local culture and language

B.the cultural implications of globalization

C.McDonald’s and English slang

D. the economic impact of globalization

友元类的所有成员函数都是另一个类的______。