已知电源的内阻为r，负载电阻为R，负载获得最大功率的条件是R（_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

已知电源的内阻为r，负载电阻为R，负载获得最大功率的条件是R（）r。

答案

参考答案：等于

填空题

Questions 9-13

·You will hear a passage about "Surviving Cultural Shock".
·For questions 9-13, choose from the list A-F the five stages of cultural shock.
·Use the letters only once. There is one extra letter, which you do not need to use.
9. Stage 1 ______
10. Stage 2 ______
11. Stage 3 ______
12. Stage 4 ______
13. Stage 5 ______
A. The Re-entry
B. The Rejection
C. The Acceptance
D. The Honeymoon
E. The Regression
F. The Non-Party

Questions 9-13

·You will hear a passage about "Surviving Cultural Shock".
·For questions 9-13, choose from the list A-F the five stages of cultural shock.
·Use the letters only once. There is one extra letter, which you do not need to use.
9. Stage 1 ______
10. Stage 2 ______
11. Stage 3 ______
12. Stage 4 ______
13. Stage 5 ______
A. The Re-entry
B. The Rejection
C. The Acceptance
D. The Honeymoon
E. The Regression
F. The Non-Party

单项选择题

下列关于建设项目竣工环境保护验收调查报告编制技术要求的叙述，有误的是( )。

A．具体工作中，应针对不同的调查对象，采取相应的验收调查方法

B．验收调查中关注的主要生态问题有生物多样性损失、生态格局破坏等

C．验收调查范围一般应比建设项目环境影响评价文件中的评价范围适度放大

D．验收调查因子原则上应根据项目所处区域环境特点和项目的环境影响性质确定