题干

依次填入横线上的最恰当的词语是(    )

①若使后之学者都墨守前人的旧说,那就没有新问题,没有新发明,一切学术也就________,人类的文化也就不会进步了。

②他的书中的词语就是含金的矿石,你只有将它们打碎并熔炼,才有可能化石为金。你的尖镐利铲则代表着严谨、勤奋和________,而你的熔炉就是你那善于思索的大脑。

③水和矿物质盐类,虽然也是生物体所________的,而且也参与躯体的组成,但是它们不能供应能量,跟一般食物不同。

A:停滞    钻研    必需

B:停滞    研究    必需

C:停止    钻研    必须

D:停止    研究    必须

上一题 下一题 0.0难度 选择题 更新时间:2010-07-06 11:36:57

答案(点此获取答案解析)

A

同类题1

根据材料内容,从方框中选择合适的句子填入文中空白处,使材料完整、通顺。其中有一个句子是多余的。

C

    In this week's Students Around the World ,Kim talks with Lisa Conroy, a college student from the USA,about her expenses(花费).

(K=Kim;L=Lisa)

K:Thanks for talking with me today, Lisa.____

L:Well.I'm twenty—one,and I'm studying at a university in Chicago.

K:____

L:My expenses for every term are almost$15,000.At the start of each term parents pay the $10,000 tuition(学费).I also get$2,000 from my college.I have to earn(挣)$3,000 myself.

K:How do you do that?

L:I have a part—time job at a hotel.I work about twenty hours a week,and cam$300.

K:____

L:It helps to pay for my rent(房租)and meals at college.It also pays for things like my phone,books,and clothes.

K:____

L:That's true! My mother advised me to spend my money carefully so I don't have to borrow.I hardly ever go to the movies.My roommates and I usually watch movies online,so it's cheaper.

K:____

L:I don't go to restaurants.I cook with my roommates so it's cheaper to eat.I try to walk or ride my bicycle to college. Oh,and I buy a lot of my clothes at second-hand stores.You can find some very cheap,nice clothes in those stores.

A.How else do you save(节省)money?

B.How do you spend that money?

C.Could you tell us a little about yourself?

D.Do you often ask for money from your parents?

E.How are you paying for your college education?

F.You don't use much money for fun,do you?