Which of the following best summarizes the text?
A．Lots of animals learn, but smarter isn't better.
B．Humans pay hidden costs for learning.
C．Learning has dangerous side effects to animals.
D．Animals learn to adapt to changing environment.

未分类题For girls computer labs seems to be______.A．full of people who tell girls they don't belongB．full of software that is only appealing to boysC．places that teachers discourage girls to beD．intimidating and associated as male areas

未分类题The text is probably mainly intended to express the idea that______.A．charity has never been under the control of selfish menB．personal attention of officeholders insures a healthy societyC．altruism is rational and an integral part of a nationD．public duty is synonymous with official duty

单项选择题某钢铁厂有位电子专业毕业的中年知识分子，曾经利用业余时间在研制小型电脑方面有所创新，他究，以争取早出成果。此种需要属于()。

未分类题According to Jake Breeden,A．Americans tend to overuse their strengths.B．there exist no such things as management virtues.C．management virtues and vices are interchangeable.D．management virtues should be closely examined.

未分类题目前，在城市社区中，同社区治安有直接关系的机构主要有()。

未分类题By mentioning 'thumb sucking', the author wants to prove that______.A．some behaviors are common before the age of 5B．children will stop some behaviors as they growC．many behaviors only happen when children drop outD．some parents overreact to their children's behavior

未分类题The underlined phrase in Paragraph 3 refers to______.A．in great timeB．religiouslyC．very soonD．naturally

未分类题According to paragraph 2, what has stood in the way of print medias further development?A．The decline of advertising revenues.B．The spread of digital news.C．The over-high operating cost.D．The large office buildings.

未分类题夹紧装置由()组成。

未分类题It is indicated in the last paragraph thatA．leadership studies should focus more on judgment.B．businesspeople, leaders in particular, are versatile.C．strengths can turn into weakness sometimes.D．judgment is the most crucial measure of leadership.

未分类题机床夹具一般由()组成。

未分类题In her advisers eyes, Margaret Thatcher wasA．a nightmare.B．a poor leader.C．a failure.D．a savior.

未分类题There is large concentration of ownership today______.A．so the quality standards from them have declinedB．although competition among them has increasedC．but the standards among newsrooms have improved over the yearsD．and this means that the qualifications of reporters is declining

未分类题Who are the kinds of reporters the writer seems to admire most?A．Reporters who are highly trained.B．Reporters who won't sully themselves.C．Reporters who are willing to sacrifice to chase after a story.D．Reporters who know how to sift through a lot of information.

未分类题The text is most likely part of a______.A．news articleB．columnC．research reportD．preface