搜题请搜索小程序“爱下问搜题”
问题 单项选择题

当过程仅存在偶然（随机）因素引起波动时，过程输出的质量特性X通常服从正态分布（）

A、（µ，2σ）

B、（µ，σ²）

C、（2µ，σ）

D、（µ，µ²）

答案

参考答案：B

多项选择题

请根据以下资料，回答77—80题
某市拟兴建一处垃圾处理中心，其建设项目主要包括：填埋场、物化处理车间、固化处理车间、公用工程及办公区等。已知该地区主导风向为东北风，雨量适中。
计划选址一：距离该市西南侧5公里处某村庄南面一处山谷(距离该村2000m)，地表植被主要为人工种植林，交通方便，但需修建进场公路500m，垃圾运输需经过3个村庄，人口居住较为密集。场地周围地势是北高南低，选址区位于最近水厂取水点上游1000m，距离最近发电厂是1500m。
计划选址二：距离该市西南侧7公里处某村庄附近北侧一处低山丘陵处(距离该村1500m)，地表植被主要为人工种植的果园、水稻蔬菜等，交通便利，但需修建进场公路800m，垃圾运输需经过2个村庄，人口居住较为稀疏。场地周围地势是北高南低，选址区附近500m处有一河流经过，选址区西南处有一高压高架输电线经过。

若对该项目进行环境影响评估，则环境影响评价报告书应包括( )部分。

A．工程概括与工程分析

B．声环境影响评估结论和建议

C．工程概况预算与可持续发展

D．振动环境影响评估结论

E．环境影响评估结论
查看答案
填空题

The doctor-patient relationship is one of the (1) relationships in life, but many people say this relationship is beyond (2) . Can this relationship be saved The answer is (3) yes, because it must. And if that is lost, medicine becomes a technology and is (4) . In part the crisis in medicine began with doctors (5) themselves from patients.
The more critical work of a doctor happens in the taking of the human (6) . (7) is the most important and most difficult single transaction. The studies show that (8) of all the valuable information that leads to correct diagnosis comes from the history. Another (9) comes from the physical examination, 10% comes from simple (10) tests, and 5% comes from all the complex (11) . So listening is vital, because listening is not merely listening, but to establish a (12) .
But some doctors think listening is (13) . They like to use complex and costly (14) , and use (15) that create adverse reactions and require (16) . They don’t like to listen. Because there’s no premium on listening and that there’s no (17) for listening.
Even so, the doctor-patient relationship is not (18) saving. Because people may ask, what is good health And good health begins first and foremost with (19) . If you don’t care for a (20) , be somebody else, but don’t be a doctor!
查看答案