电油汀的超温熔断器烧坏开路,可引起()故障。A.通电后加热灯亮但不加热 B.通电后加

题型:单项选择题

问题:

电油汀的超温熔断器烧坏开路,可引起()故障。

A.通电后加热灯亮但不加热

B.通电后加热灯不亮也不加热

C.加热温度过低

D.加热温度过高

考点:电子产品维修工高级家用电子产品维修工高级家用电子产品维修工题库
题型:单项选择题

防火墙是一种常用的网络安全装置,它可以 (63) 。有多种实现防火墙的技术,如包过滤、代理服务器、双穴主机和屏蔽子网网关等,相对来说 (64) 功能较弱但实现也较简单。

(63)处填()。

A.防止内部人员的攻击

B.防止外部人员的攻击

C.防止内部人员对外部的非法访问

D.既防止外部人员的攻击,又防止内部人员对外部的非法访问

题型:单项选择题

女,48岁,近半年数次发作性右上腹痛,恶心呕吐,多为夜间睡眠后发作,并向右肩部放射。检查:肥胖体质,P90次/分,BP110/80mmHg。右上腹轻度压痛,无腹肌紧张

虽经治疗未缓解,反而持续性疼痛加重,上腹压痛及跳痛,腹肌紧张,体温38.5℃,此时可诊断为()

A.急性坏死性胰腺炎

B.十二指肠溃疡穿孔并弥漫性腹膜炎

C.胆总管结石

D.结石性急性坏疽性胆囊炎

E.急性化脓性胆管炎

题型:单项选择题

为什么说中 * * 党是中国工人阶级的先锋队,同时是中国人民和中 * * 的先锋队?

题型:单项选择题

It is natural for young people to be critical of their parents at times and to blame them for most of the misunderstandings between them. They have always complained, more or less justly, that their parents are out of touch with modem ways; that they are possessive and dominant; that they do not trust their children to deal with crises; that they talk too much about certain problem—and that they lack sense of humor, at least in parent-child relationships.
I think it is true that parents often underestimate their teenage children and also forget how they themselves felt when young.
Young people often irritate their parents with their choices in clothes and hairstyles, in entertainers and music. This is not their motive. They feel cut off from the adult world into which they have not yet been accepted. So they create a culture and society of their own. Then, if it turns out that their music or entertainers or vocabulary or clothes or hairstyles irritate their parents, this gives them additional enjoyment. They feel they are superior, at least in a small way, and that they are leaders in style and taste.
Sometimes you are resistant and proud because you do not want your parents to approve of what you do. If they approve, it looks as if you are betraying your own age group. But in that case, you are assuming that you are the underdog; you cannot win but at least you keep your honor. This is a passive way of looking at things. It is natural enough after long years of childhood, when you were completely under your parents’ control. But it ignores the fact that you are now beginning to be responsible for yourself.
If you plan to control your life, cooperation can be part of that plan. You can charm others, especially your parents, into doing things the way you want. You can impress others with your sense of responsibility and initiative, so that they will give you the authority to do what you want to do.

Teenagers do not want their parents to approve of whatever they do because they ______.

A. have already been accepted into the adult world
B. feel that they are superior in a small way to the adults
C. are not likely to win over the adults
D. have a desire to be independent

题型:单项选择题

下列选项中,关于先张法的特点,说法正确的是( )。

A.工艺简便,工序少

B.效率高,质量好

C.适用于工厂化大批量生产定型的中小型预应力混凝土构件

D.预应力的建立和传递是靠钢筋和混凝土间的黏结力完成的

E.成本较高

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