问题 解答题
小红、小兰和小琴三人买文具情况如表:
中华牌HB铅笔光明牌橡皮共付钱数
小红20枝6块14.8元
小兰16枝5块
小琴20枝4块13.2元
你能根据上表提供的信息,计算出小兰买的铅笔和橡皮共付多少钱吗?
答案

橡皮:(14.8-13.2)÷(6-4),

=1.6÷2,

=0.8(元);

铅笔:(14.8-0.8×6)÷20,

=10÷20,

=0.5(元);

每枝铅笔0.5元,每块橡皮0.8元,

16×0.5+5×0.8,

=8+4,

=12(元);

答:小兰买的铅笔和橡皮共付12元钱.

故答案为:12元.

单项选择题

Personality is to a large extent inherent. A-type parents usually (1) A-type offspring. But the environment must also have a profound effect (2) if competition is important to the parents, it is (3) to become a major factor in the lives of their children.

One place where children (4) A characteristics is school, which is, (5) its very nature, a highly competitive institution. Too many schools (6) the "win at all costs" moral standard and measure their success by sporting achievements. The current (7) for making children compete against their classmates or against the (8) produces a two-layer system, in which competitive A types seem in some way better than their B type fellows. Being too (9) to win can have dangerous consequences: remember that Pheidippides, the first marathon runner, (10) dead seconds after saying. "Rejoice, we conquer!"

(11) the worst form of competition in schools is the disproportionate emphasis on examinations. There is, for example, a (12) school that allows pupils to concentrate on those things they do well. The (13) of competition by examination are somewhat questionable, but competition in the certain (14) of failure is positively harmful.

(15) , it is neither practical nor desirable that all A youngsters change into B’s. The world needs types, and schools have an important duty to try to (16) a child’s personality to his possible future employment. It is top management.

If the preoccupation of schools with academic work was (17) , more time might be spent teaching children surer values. Perhaps selection (18) the caring professions, especially medicine, could be made less by good grades in chemistry and more by such (19) as sensitivity and sympathy. It is surely a mistake to choose our doctors exclusively from A type stock. B’s are important and should be (20) .

4()

A. draw on

B. get over

C. drag on

D. soak up

问答题 简答题