支持智能光网络(ASON)特性的设备()A、155/662H B、2500+ C、M

题型:单项选择题

问题:

支持智能光网络(ASON)特性的设备()

A、155/662H

B、2500+

C、METRO500

D、OSN7500

考点:移动通信机务员鉴定设备知识设备知识题库
题型:单项选择题

顶叶()

A.言语、智慧中枢

B.感觉和运动

C.视觉中枢

D.听觉中枢

E.调节紧张与觉醒

题型:单项选择题

如图所示,为一种“滚轮-平盘无极变速器”的示意图,它由固定于主动轴上的平盘和可随从动轴移动的圆柱形滚轮组成。由于摩擦的作用,当平盘转动时,滚轮就会跟随转动。如果认为滚轮不会打滑,那么主动轴转速n1、从动轴转速n2、滚轮半径r以及滚轮中心距离主动轴轴线的距离x之间的关系是

[ ]

A.

B.

C.

D.

题型:单项选择题

根据《水利水电建筑安装安全技术工作规程》(SD267—88),在110kV带电体附近进行高处作业时,工作人员的活动范围距带电体的最小安全距离为()。

A.1.0m

B.1.5m

C.2.0m

D.2.5m

题型:单项选择题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项多余选项。

     1. _____: less red meat and more fibre, less saturated fat (饱和脂肪) and more fruit and veg, right?

Wrong, according to a controversial new book by nutritionist Zoe Harcombe. In the book, Harcombe

charts her careful journey of research into studies that underpin (巩固) dietary advice-and her myth (误

区)-breaking conclusions are surprising.

     Myth: 2._____.

     "Real fat is not bad for us," says Harcombe. It' s man-made fats we should be demonising. Why do

we have this idea that meat is full of saturated fat? In a 100g pork chop, there is 2.3g of unsaturated fat

and l.5 g of saturated fat.

     Myth: We should eat more fibre.

     For three decades, we have eaten fibre into our bodies to help us feel full and keep our digestive systems

moving. 3._____, says Harcombe.

     The advice to eat more fibre is put forward along with the theory that we need to clean our digestive

systems. But essential minerals are absorbed from food while it is in the intestines (肠道), so why do we

want to wash everything out? Concentrate on not putting bad food in.

     Myth: You need to eat five portions of fruit and veg a day.

     "Five-a-day is the most well-known piece of nutritional advice," says Harcombe. "You' d think it was

based on firm evidence of health benefit. 4._____."

     Five-a-day started as a marketing campaign by 25 fruit and veg companies and the American National

Cancer Institute in 1991. There was no evidence for any cancer benefit.

     Myth: Fruit and veg are the most nutritious things to eat.

     Apparently not. Harcombe allows that vegetables are a great addition to the diet-if served in butter to

deliver the fat-soluble (dissolved) vitamins they contain-but natural sugar, the fruit sugar in fruit, goes

straight to the liver and is stored as fat. 

     5._____, says Harcombe, who adds:"Vitamins and minerals in animal foods-meat, fish, eggs and dairy

products-beat those in fruit."

A. Want to lose weight? Don't trust these

B. We think we know what to eat

C. This is not a good idea

D. Fat is bad for us

E. Think again

F. We need take more exercise

G. Fruit is best avoided by those trying to lose weight

题型:单项选择题

医疗机构的从业人员基本行为规范:①以人为本,践行宗旨;②遵纪守法,依法执业;③尊重患者,关爱生命;④优质服务,医患和谐;⑤廉洁自律,恪守医德;⑥严谨求实,精益求精;⑦爱岗敬业,团结协作;⑧乐于奉献,热心公益。请选择正确()

A.①、②、④、⑥、⑧

B.①、③、⑤、⑦、⑧

C.②、④、⑤、⑥、⑦

D.②、③、⑥、⑦、⑧

E.以上都是

更多题库