当前位置: 首页 > 问题分类 > 外语类考试 > 专四专八 > 问题详情
问题

How many generators does the shuttle carry?

A.One.

B.Two.

C.Three.

D.Four.

您可能感兴趣的试题
  • Most people think of lions as strictly African beasts, but only because they've been killed off almost everywhere else. Ten thousand years ago lions spanned vast sections of the globe, and so did people, who —as they multiplied and organized —pat pressure on competitors at the top of the food chain. Now lions hold only a small fraction of their former habitat, and Asiatic lions, a subspecies that split from African lions perhaps 100,000 years ago, hang on to an almost impossibly small slice of their former domain.

    India is the proud steward of these 300 or so lions, which live primarily in a 560-square-mile (1,450-square-kilometer) sanctuary. It took me a year and a half to get a permit to explore the entire Gir Forest —and no time at all to see why these lions became symbols of royalty and greatness. A tiger will slink through the forest unseen, but a lion stands its ground, curious and unafraid —lionhearted. Though they told me in subtle ways when I got too close, Gir's lions allowed me unique glimpses into their lives during my three months in the forest. It's odd to think that they are threatened by extinction; Gir has as many lions as it can hold —too many, in fact. With territory in short supply, lions prowl the periphery of the forest and even leave it altogether, often clashing with people. That's one reason India is creating a second sanctuary. There are other pressing reasons: outbreaks of disease or natural disasters. In 1994 canine distemper killed more than a third of Africa's Serengeti lions —thousand animals —a fate that could easily befall Gir's cats. These lions, saved by a prince at the turn of the 20th century, are especially vulnerable to disease because they descend from as few as a dozen individuals. "If you do a DNA fingerprint, Asiatic lions actually look like identical twins," says Stephen O'Brien, a geneticist who has studied them. Yet the perils are hidden, and you wouldn't suspect them by watching these lords of the forest. The lions exude vitality, and no small measure of charm.

    Though the gentle intimacy of play vanishes when it's time to eat, meals in Git are not necessarily frenzied affairs. For a mother and cub sharing a deer, or a young male relishing an antelope, there's no need to fight for a cut of the kill. Prey animals are generally smaller in Gir than they are in Africa, and hunting groups tend to be smaller as well. The lions themselves aren't as big as African lions, and they have shorter manes and a long fold of skin on their undersides that many lions in Africa don't have.

    What impressed the author most when he went to watch the lions in the Gir Forest?

    A.The lions were on the brink of extinction.

    B.They were suffering from a fatal disease.

    C.They allowed him to see their vitality and charm at close quarters.

    D.Mother lion and her cub shared a deer.

  • Why are the lions in the Git Forest especially vulnerable to disease?

    A.They are physically weaker than the African lions.

    B.They are small in size.

    C.They do not have enough to eat.

    D.They have descended from a dozen or so ancestors.

  • Which of the following is NOT among the reasons that India is creating a secondary sanctuary for the Asiatic lions?

    A.Too many of them in the present sanctuary.

    B.Possible outbreak of disease.

    C.Clashing with people.

    D.Food shortage.

  • Currently, every college student knows that ability is important. They would like to attend various training programs and apply for different certificates so that they are more competent. Do you think that attending training programs and getting more certificates can improve competence? Write an essay of about 400 words entitled: Do More Certificates Stand for Better Ability?

  • 39.8

    ¥80 每天只需1.3元
    1个月 推荐
  • 49.8

    ¥100
    3个月
  • 99.8

    ¥200
    1年

选择支付方式

  • 微信付款
  • 支付宝付款
郑重提醒:支付后,系统自动为您完成注册

请使用微信扫码支付(元)

订单号:
支付后,系统自动为您完成注册
遇到问题请联系在线客服

常用手机号:
用于找回密码
图片验证码:
看不清?点击更换
短信验证码:
新密码:
 
绑定后可用手机号登录
请不要关闭本页面,支付完成后请点击【支付完成】按钮
遇到问题请联系在线客服
×
验证