【按序答1-4题】网桥是一种常用的网络互联设备,它工作在OSI的(1)上。在LAN中用于桥接少量以太网网段时,常用的网桥是(2)。从网桥的基本原理可知网桥(3),因此使用网桥有两个显著优点,其一是(4),其二是利用公共通信链路实现两个远程LAN 的互联。
1()
W: I’ve been reading about a new snack food. It’s made from fish. Have you heard anything about it
M: No. I haven’t, but 1 don’t like fish very much anyway.
W: Not to worry. Although it’s made primarily from fish, it actually doesn’t have a fishy taste. In fact, it can be flavored with tomato, cheese, or chocolate for instance
M: How can it not taste fishy Do you know how this snack food is made
W: First the fish is minced and cooked and fermented. Then water and starch are added to make a dough.
M: It sounds awful.
W: Actually the dough is very bland al that point, so the flavorings are added to give it some taste.
M: Well, it still sounds a little strange. But I suppose this product will at least be low calorie and high protein. like a health food.
W: Yes, you could call it that. And it has a long shelf life, so it won’t spoil quickly. It is also easy to digest and can ha m
A. Its low purchase price.
B. Its wide availability.
C. Its good nutritional value.
D. Its high water content.
Why work {{U}} (62) {{/U}} you
have periodically asked yourself the same question, perhaps focused on
{{U}} (63) {{/U}} you have to work. Selfinterest in its broadest
{{U}} (64) {{/U}} including the interests of family and friends, is a
basic {{U}} (65) {{/U}} for work in all societies. But self-interest can
{{U}} (66) {{/U}} more than providing for subsistence
or {{U}} (67) {{/U}} wealth. For instance, among the Maori, a
Polynesian people of the South Pacific, a desire for approval, a sense of duty,
a wish to {{U}} (68) {{/U}} to custom and tradition, a feeling of
emulation(竞争), and a pleasure in craftsmanship are {{U}} (69) {{/U}}
reasons for working. Even within the United States, we cannot understand work as
simply a response to {{U}} (70) {{/U}} necessity. Studies show that ’the
vast {{U}} (71) {{/U}} of Americans would continu A. rewarding B. contributing C. astonishing D. interesting [单选题]根据《国务院办公厅关于进一步做好房地产市场调控工作有关问题的通知》(国办发(2011)1号),下列理解错误的是( )。
A.人民银行各分支机构可根据当地人民政府新建住房价格控制目标和政策要求,在国家统一信贷政策的基础上,提高第二套住房贷款的首付款比率和利率 B.对房地产开发建设投资达不到20%以上的(不含土地价款)不得以任何方式转让土地及合同约定的土地开发项目 C.对个人购买住房不足5年转手交易的,统一按其销售收入全额征税 D.对贷款购买第二套住房的家庭,首付款比例不低于60%,贷款利率不低于基准利率的1.1倍 [判断题]站台门未关好时,车站人员操作互锁解除,司机以CM-CTC模式无法动车。
A.正确 B.错误 [单项选择]2012年9月,某人寿保险股份有限公司开发了一款年金保险产品。该产品条款中约定,保险公司保证在被保险人60周岁开始以确定年金的方式支付年金给被保险人,直到被保险人70周岁;同时,若被保险人在70周岁后仍生存,保险公司则支付年金给被保险人直到被保险人身故。该年金保险称为()。
A. 确定年金 B. 生存年金 C. 有最低保证的生存年金 D. 递延年金 [单选题]引起食物嵌塞的原因,除外
A.牙齿错位或扭转 B.牙齿缺失后长期未修复 C.修复体在龈缘的位置 D.修复体未恢复邻面触点和边缘嵴 E.咬牙合面的过度磨损 [单项选择]一般只在特种变压器(如电炉变压器)中采用()铁芯。
A. 圆式 B. 壳式 C. 心式 D. 球式 [单选题]叉车常用属具中的铲斗,在实际使用时一般适用于()的货物作业。
A.粉状、散粒 B.小件 C.大件 D.包装 [多选题]机械传动是靠构件之间的摩擦或啮合来传动的,以改变从动件的速度大小、转动的方向,实现 或改变力与力矩的变化,但从动件的运动都是匀速的、连续的。
A.减速 B.增速 C.变速 D.匀速 [单选题]单选题 为使制动器获得合适的制动力矩,应调整( )。
A. 电磁铁冲程 B. 主弹黄工作长度 C. 制动瓦块与制动轮的间隙 [多项选择]机床夹具的组成:()。
A. 定位元件; B. 夹紧装置; C. 夹具体; D. 连接元件; E. 对刀与导向装置; F. 其它元件或装置 [单选题]以下关于劳动防护手套的说法错误的是( ).
A.防护手套大小应合适,避免手套过长,被机械绞或卷住,使手部受伤 B.使用绝缘手套前.应先检查外观,如发现表面有孔洞、裂纹等应停止使用 C.绝缘手套应每6个月检验一次,合格后方可继续使用 D.可以使用一般棉布手套进行电焊作业 [单选题]JWXC-1000型继电器前后两个线圈匝数为()。
A.1500×2匝 B.2000×2匝 C.4000×2匝 D.8000×2匝 [判断题]行政机关应当根据被许可人的申请,在该行政许可有效期届满前作出是否准予延续的决定;逾期未作决定的,应当继续等待并可进行投拆。
A.正确 B.错误 [判断题]脚手架的安装、拆除和使用,应执行《国家电网公司电力安全工作规程[火(水)电厂(动力部分)]》中的有关规定及国家相关规程规定。
A.正确 B.错误 我来回答: 提交
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