题干

关于我国山区的叙述,错误的是(    )

A:我国山区面积广大,约占我国陆地面积的三分之二;

B:山区若不注意生态环境建设,可能发生崩塌、滑坡、泥石流等自然灾害;

C:在坡度较大的山区,适宜开垦耕地,发展种植业;

D:我们可以因地制宜,在山区地区发展旅游业、采矿业

上一题 下一题 0.0难度 选择题 更新时间:2017-10-13 01:03:20

答案(点此获取答案解析)

C

同类题1

阅读下文,回答问题。

平分生命

       男孩与他的妹妹相依为命。父母早逝,她是他唯一的亲人,所以男孩爱妹妹胜过爱自己。

       然而灾难再一次降临在这两个不幸的孩子身上。妹妹染上重病,需要输血。医院的血液太昂贵,男孩没有钱支付任何费用。尽管医院已免去了手术费,但不输血妹妹就会死去。

       作为妹妹唯一的亲人,男孩的血型和妹妹相符。医生问男孩是否勇敢,是否有勇气承受抽血时的疼痛。男孩开始犹豫,十岁的大脑经过一番思考,终于点了点头。

       抽血时,男孩安静地不发出一丝声响,只是向着邻床的妹妹微笑。抽血完毕后,男孩声音颤抖地问:“医生,我还能活多长时间?”

       医生正想笑男孩的无知,但转念间又被男孩的勇敢震撼了:在男孩十岁的大脑中,他认为输血会失去生命,但他仍然肯输血给妹妹。在那一瞬间,男孩所作出的决定是付出一生的勇敢,并下定了死亡的决心。

       医生的手心渗出了汗,他紧握了男孩的手说:“放心吧,你不会死的。输血不会丢掉生命。”

       男孩的眼中放出光彩:“真的?那我还能活多少年?”医生微笑着,充满爱心地说:“你能活到一百岁,小伙子,你很健康!”男孩高兴得又蹦又跳。他确认自己真的没事时,就又挽起胳膊——刚才被抽血的胳膊,昂起头,郑重其事地对医生说:“那就把我的血抽一半给妹妹吧,我们两个每人活五十年!”

       所有的人都震惊了,这不是孩子无心的承诺,这是人类最无私纯真的诺言。

同类题2

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    Please Don't Be Afraid To Travel On Your Own

    You want to travel. You make an unclear plan. ____ But either way, you're leaving in six months time. You start doing research every single night.

    Of course, as this will be your first ‘real' travel experience, you naturally prefer to travel with other people. ____ But the first friend you ask, perhaps your closest friend, turns you down and so you move on to the next friend. ____ The third friend, the fourth friend and even that guy that you don't really like say no as well.

    ____You hope that one of your friends will change their mind and decide to join you. Maybe you decide to forget about your trip altogether, fully believing that you can only travel so far away from home with a friend or travel companion (同伴) by your side.

    Don't give up just yet. Here's my advice to you. You may be on your own when you board that flight to Bangkok or Mexico City, but believe me, once you arrive, you'll never actually be alone. That's how travel works. Unless you stare at the ground and never talk to anyone, you're going to meet people when you travel, lots and lots of people from all over the world. ____

A. Don't give it up.

B. Maybe you'll fly to Thailand or to Mexico.

C. Meeting new people is one of the worst things to do.

D. But they too, tell you they have no interest to join you at all.

E. They will be interested in meeting and hanging out with you.

F. So you start asking your friends to join you in your journey.

G. Maybe you decide to put off your trip for another six months.