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问题 综合

读“农业的主要区位因素图”，回答问题。

（1）图中字母表示的区位因素是：A__________，B_________，C____________，D____________。

（2）影响世界各地农业生产主要因素的差别很大，形成了农业极为明显的_________特征，因此农业生

    产必须坚持__________________的原则。

（3）分析回答形成下列各地农业类型的最主要的区位因素。

    横断山区的“立体农业”：____________；

    东北平原农作物大都是一年一熟，华北平原农作物大都是两年三熟：____________；

    我国东南丘陵红壤地区种植茶树：____________；

    美国一个大型农场只需要少量农业工人：____________。

答案

（1）气候；土地；生产技术（或技术）；运输（或交通）

（2）地域性；因地制宜

（3）地形；气候；土壤（土地）；农业技术装备

单项选择题

北京希电公司生产的PCM复用设备进行单台测试时，在设备可用的端口连接误码测试仪，用同轴电缆直接将这台设备的（）接口收发互连即可测得本台设备是否正常。

A、V.24

B、V.35

C、RS232

D、E1
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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) .

2（）

A.when

B.since

C.although

D.and
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