信息传输速率越高,占用频率就越宽。

题型:判断题

问题:

信息传输速率越高,占用频率就越宽。

考点:中国电信交换设备维护规程中国电信交换设备维护规程题库
题型:判断题

哪项不是病毒感染对宿主细胞的直接作用()。

A.杀细胞感染

B.细胞融合

C.病毒与宿主细胞基因组整合

D.形成包涵体

E.产生超敏反应

题型:判断题

If we sit near _____ front of the bus, we'll have _____ better view. [ ]

A. 不填; the

B. 不填; a

C. the; a

D. the; the

题型:判断题

Mr. Fitzpatrick has given much attention to his “Weight reduction” (减轻体重) programs. Just last year, for example, when he was the main speaker at the company dinner, he said he put on twenty pounds instead of losing thirty he promised he would.

The year before that, he joined a health club. He exercised every day and ate less food. At the end of three months, however, he began making excuses about why he couldn’t go there more often.

After the health club failed to work, he joined Weight Watchers but stopped going because he was the only man there. And he hated following any of the diet programs. Fitz’s latest idea is to join a walking club to “walk off” the weight.

41. Mr. Fitzpatrick was ________ when spoke at the company dinner last year.

A. lighter than the year before B. planning to go on a diet

heavier than the year before D. with the Weight Watchers

42. He did not stay with Weight Watchers because ________.

A. he couldn’t do as the diet programs required him

B. he felt uncomfortable being watched by women

C. the members of Weight Watchers were all women but him

D. both A and C

43. Which of the following can best explain the main idea of the passage?

A. There is no good way to lose weight. B. One can do nothing without a strong will.

C. There are different ways to lose weight. D. Walking is the best way of losing weight.

题型:判断题

男性,7岁,6小时前由货车上跌下,伤后即有呼吸困难,并逐渐加重。入院查体:脉搏130次/分,血压80/50mmHg,呼吸22次/分,颜面发绀,吸气性呼吸困难,颈上胸部有皮下气肿,气管向左移位,右侧呼吸音消失。

其诊断首先考虑

A.血胸

B.多根多处肋骨骨折

C.血心包

D.张力性气胸

题型:判断题

对直径为1.65m的单柱单桩嵌岩桩,当检验桩底有无空洞、破碎带、软弱夹层等不良地质现象时,应在桩底下的下述何种深度(m)范围进行?()

A.3

B.5

C.8

D.9

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