虚拟网络中逻辑工作组不受物理位置的限制,逻辑工作组的划分与管理是通过哪种方式实现的_

题型:单项选择题

问题:

虚拟网络中逻辑工作组不受物理位置的限制,逻辑工作组的划分与管理是通过哪种方式实现的______。

A.硬件方式

B.存储转发方式

C.改变接口连接方式联

D.软件方式

考点:计算机等级考试网络技术三级网络技术笔试
题型:单项选择题

Many people may think that animals in the zoo are happy, free and lucky, but most of them are sad. Do you know why? Animals like tigers, lions, and bears usually live in forests or mountains. They run, jump, play with their children and catch small animals for food. But now they have to stay in cages ,small rooms in the zoo. They don’t have to find food by themselves because the zoo keepers feed them. They do nothing but eat, walk and sleep every day. Their life in the zoo is quite different from that in the forest because they are not free. Maybe they miss their mothers and their friends, in fact, they feel lonely.

小题1:Most of the animals in the zoo feel ______ according to the passage.

A.happy

B.free

C.lucky

D.sad小题2:Where do tigers, lions and bears usually live?_____________.

A.In the zoo

B.In the forest

C.In a room

D.In the field小题3:What does the word “keeper” mean here? It means ____________.

A.仓库

B.监护人

C.坚持者

D.饲养员小题4:Which is wrong according to the passage?

A.The animals in the zoo feel lonely in fact.

B.The animals catch food themselves in the zoo.

C.The animals can only eat, walk or sleep in the zoo.

D.The animals in the forest are happier than those in the zoo.小题5:Which is the best title题目?

A.Animals In the Zoo

B.Animals And People

C.Lovely Animals

D.Happy Animals

题型:单项选择题

细胞膜(生物膜的一种)具有控制物质进出细胞的作用,但具有相对性,请根据提供的实验材料和用具简要写出第二步及以后的实验步骤和实验结果,验证细胞膜具有控制物质进出细胞的功能。

材料和用具:

①新鲜的红色康乃馨 ②烧杯 ③玻璃铅笔 ④质量分数为15%的盐酸 ⑤清水 ⑥量筒

(1)第一步:选两个大小相同的烧杯,用玻璃铅笔标上A和B。

(2)第二步:________________________________________。

(3)第三步:________________________________________。

(4)结果:__________________________________________。

(5)问题:盐酸溶液中结果出现的原因是________________________________________。

题型:单项选择题

会员制期货交易所总经理每届任期5年,没有届数限制,可连选连任。()

题型:单项选择题

Instead, the agency would offer its services in research and development to buttress industry's work on a given task.

A.increase

B.decrease

C.support

D.import

题型:单项选择题

患者女性,42岁,右乳癌术后2年。1个月前右颈部锁骨上触及一包块。查体:右颈部锁骨上触及一约1.0cm×1.5cm淋巴结,无压痛。心肺检查(-)。多次查血CA-153水平,呈进行性升高,PPD试验:(-)。拟行Tc-MIBI亲肿瘤显像以进一步评估右颈部包块性质。

显像时,常选用的准直器类型是().

A.低能高灵敏度准直器

B.中能高灵敏度准直器

C.高能高灵敏度准直器

D.低能高分辨准直器

E.中能高分辨准直器

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