问题
单项选择题
某机场通道两侧需要安装护栏，以保证旅客安全。工程技术人员查阅了有关资料，按照最大百分位数的人体重心高度确定了护栏的高度，从工效学的角度讲，这种设计属于
A．最大值设计
B．最小值设计
C．安全度设计
D．单限值设计
E．中位数设计
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
某机场通道两侧需要安装护栏，以保证旅客安全。工程技术人员查阅了有关资料，按照最大百分位数的人体重心高度确定了护栏的高度，从工效学的角度讲，这种设计属于
A．最大值设计
B．最小值设计
C．安全度设计
D．单限值设计
E．中位数设计
参考答案：D
When Mr. Hunt woke up in the morning, he felt his bedroom was very bright. He thought he ____ to turn off the light again. He sat up and tried to do that. And now he ____ it was the sunlight. Mr. Hunt went to see their daughter in the city two days ago. She cooked some food for him ____ he left. But Mr. Hunt hoped to have breakfast in a restaurant near the park. And then he could walk ____ the lake. He put on his clothes and went out. The sun was shining brightly in the sky and the ____ was fresh (清新的) . But people were busy and he could see only some old people and children. He went in the restaurant and sat down at a table, waiting for the ____. “Hi, Peter!” someone called him and he saw it was his ____ Richard. “Hi, Richard. Glad to meet you here.” “Glad to meet you, too,” said Richard. “I’m sorry , but I ____ my wallet at home . So could you lend fifty dollars to me, please?” “Sure, but I have only twenty five dollars in my ___.” “It doesn’t matter ,” said Richard , “ then you’ll owe(欠) me twenty-five dollars and I’ll owe you ____ dollars , too . That’ll be fair (公平的) .”
|
[背景材料]续上题。根据承包商的工程量报价清单，该工程各项工作的总价如表8 (假定各工作的价值与其施工时间成正比)。
表8
| 工作 | A | B | C | D | E | F | G | H | I | J | K | L |
| 总价(万元) | 40 | 100 | 30 | 70 | 120 | 80 | 160 | 140 | 30 | 66 | 120 | 40 |