高压断路器在分断状态下，其触头间的绝缘及灭弧物质（或方法）一_爱下问搜题

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问题单项选择题

高压断路器在分断状态下，其触头间的绝缘及灭弧物质（或方法）一般不会采用（）。

A.压缩空气

B.二氧化碳

C.六氟化硫

D.绝缘油

答案

参考答案：A

单项选择题 A1/A2型题

再生障碍性贫血的病因是（）

A.脱氧核糖核酸合成障碍

B.珠蛋白合成障碍

C.红细胞膜的缺陷

D.造血功能障碍

E.红细胞被血清中抗体或补体所影响

填空题

Tidiness

Tidiness means keeping things out of sight and yet available when wanted. It implies that there is a (1) for everything and that each thing used finds its way (2) to its place by a continuos process, not by a spasmodic (3) . The process depends, however, upon the drawer, cupboard and storage (4) being provided, for lack of which one things may literally have (5) place to go. Like the perambulator and trolley, the luggage and the golfclubs (6) be homeless. The same may be true of the deck-chairs (7) the bulkier plastic toys. As there is no place for them, it is no (8) telling people to put them away. The architect who thus economises on (9) space is apt to claim that a good-sized sitting-room is (10) result. What advantage is there in that, however, (11) half the living-room has to be used for storage The aesthetic (12) depends, in turn, upon storage space. (13) it may be true that no house ever had cupboards enough, (14) are some houses which have practically no cupboards (15) all. In these our choice must lie between chronic (16) and ruthless destruction. That is not to say, however, (17) cupboard space will itself create tidiness. Some people (18) happier, it would seem, in chaos. There is the question, furthermore, (19) the cupboards themselves are tidy. That (20) has been swept out of sight is no proof, in itself, that everything can be found.