设L是圆域 按顺时针方向的边界曲线，则https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/f2e053ac144d460d96a9627cd769114d.png
举一反三
- 设A=<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/bc546fc03fdb4ba3b7e6b144b6371d7f.png" />，B=Р(Р(A)) 下列（ ）表达式不成立。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/6e615703da60435893f9e9a9273e12e5.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/64c831067d054e71a6c76f43849d450d.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/72023a5250e44c12b98923044194f13d.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/c48e039a739c4502830eee7ae0ac1678.png" />
- 设D：全总个体域，L(x)：x是演员，J(x)：x是老师，A(x, y)：x钦佩y。则命题“所有演员都钦佩某些老师”的逻辑符号化为（ ） A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/2e49e1f4de184b848904ec9302bd6df4.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/b1c221caeb944da0a2e37ae5e6484cdc.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/204ad67b6eb04dc5be97acf4121e669d.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/6957f2ed8ea3445480d15e716265ef61.png" />
- 若L是上半椭圆 取顺时针方向，则 的值为( ).https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/87464b2710b74edd919a1014709f8862.png
- 设D：全总个体域，F(x)：x是人，H(x, y)：x与y相同，L(x, y)：x与y一样高。则命题“任何两个不同的人都不一样高”的逻辑符号化为（ ） A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/4b94c698d08f4a04b660d5b6efb30089.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/786309b3ecdd4425922f5494966fa07d.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/0a4682e71855487ea0a81c3c14185b0b.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/7c7bc9a8ab404881aa4b2624a45e3575.png" />
- 设D：全总个体域，F(x)：x是病人，G(x)：x是医生，H(x, y)：x相信y。则命题“所有的病人都相信医生”的逻辑符号化为（ ） A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/3bdf051eb63a487ebe8cee0b418e2422.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/bfae84737f674bd0b1d8ba7d206c1edf.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/d6d343e235594926aec9dbfcc9ef4b30.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/6d189695377347739a4c0478956d9248.png" />