搜题请搜索小程序“爱下问搜题”
问题 单项选择题

船舶离泊计划通常应包括：（）

Ⅰ开航前的准备Ⅱ离泊操纵总体安排Ⅲ离泊操纵中可能遇到的问题和对策Ⅳ港内航道航行操纵

A.Ⅰ、Ⅱ

B.Ⅰ、Ⅲ、Ⅳ

C.Ⅱ～Ⅳ

D.Ⅰ～Ⅳ

答案

参考答案：D

多项选择题

编制投标文件应遵循的原则和要求有（）。

A.投标人应按招标文件的规定和要求编制投标文件

B.投标文件应对招标文件提出的实质性要求和条件作出响应

C.投标报价应依据招标文件中商务条款的规定，国家公布的统一工程项目划分、统一计量单位、统一计算规则及设计图纸、技术要求和技术规范编制

D.投标报价应由工程成本、利润、税金，保险、措施费以及采用市场价格的风险金等构成

E.投标人不得以低于成本的报价竞标，也不得以他人名义投标或者以其他方式弄虚作假，骗取中标
查看答案
问答题

Man first appeared on the earth about 2 million years ago. Then he was little more than an animal; but early man had a big advantage over the animals. He had in his brain special groups of nerve cells, not present in animals that enabled him to invent a language and use it to communicate with his fellow men. 46) This ability to speak was of great value because it allowed men to share ideas, and to plan together, so that tasks impossible for a single person could be successfully undertaken by intelligent team-work. Speech also enabled ideas to be passed on from generation to generation so that the stock of human knowledge slowly increased.
It was this special ability that put men far ahead of other living creatures in the struggle for existence. 47) He mastered darkness first with dim lights and later with brighter and brighter lamps, until he can now make for himself so dazzling a light with an are lamp that, like the sun, it is too p for his naked eyes.
48) Man found that his own muscles were too weak for the work which he wanted to do; he explored many other forms of power until now he has his hands on the ultimate source of physical energy, the nuclear power. From man’s earliest days the flight of birds has raised his wonder and desire. Why should he not fly as they did Then he began to experiment. At last he learnt how to make the right machines to carry him through the air. Now he can fly faster than sound. Already he has plans for conquering space, and a series of experiments has been completed. 49) It will not be long now before man takes a giant step away from his planet and visits the moon, learning what it is like to have no weight to his body, no upward direction and no downward.
Man, always a wanderer, has to overcome the difficulty of adapting himself to different climates. 50) Fortunately, in spite of having no. thick skin or warm fur to protect him, he is peculiarly p compared with other living creatures, most of whom are unable to live far outside the region that suits them best.
查看答案