I have a good friend at home. Her name is Mimi. She is white and yellow. She is very cute. I play with her when(当……的时候) I have time. She likes fish very much. When she is behind (在……之后) the sofa or in her box, you can’t see her. When I sit on the sofa, she sits with me. In the evening I do my homework at my desk, and she is on the desk. At that time I put her down(放下). Then she sits next to me. Is she a good friend of mine?

比较魏源和严复的相同之处，下列说法正确的是（     ）

①都参加了抗击英军侵略的战争

②都具有强烈的爱国情感

③都深受民族危机的触动

④都主张向西方学习

⑤都具有资产阶级民主思想

用甲、乙两种单色光照射同一金属做光电效应实验，发现光电流与电压的关系如图所示．已知普朗克常量为h，被照射金属的逸出功为W₀，遏止电压为Uc，电子的电荷量为e，则下列说法正确的是（   ）