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" />

2022-06-03

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" />

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:

B:

C:

D:

答案：

B

举一反三

内容

0
下列电极电势最小的是： A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/dad3349a56e84119aff354de027c99e1.png"/> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/980bfc83fd624e14ab4d98cc5b6f71dd.png"/> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/a54b31ea021644c788a5c687342ced4d.png"/> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/8851284b569348549a0a28ded6b2cff1.png"/>
1
已知主视图和俯视图，下面左视图画法正确的有（）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/2bcab5bbb4024d99b27781c7c286d861.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/c740df10c8d64a5c9f269c0808cfba30.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/d19031d8c17543f699d8827fa6ac1249.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/1780a38439af44618170b420943a6b6d.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/8b29c3cc4c2e4f3e919c5f22d4ac96f1.png" />
2
已知主视图和俯视图，下面左视图画法正确的有（）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/0e67a6814bf3453d8a2560ad2803175b.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/9cbbab2efe124ef98699ab70b405efa7.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/43768386d66b41419559fe5bf0fb308d.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/3880af04e89d468c8c94acccd953d9c7.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/d4f57df49926458fba76fe114e40f01c.png" />
3
下面螺纹画法正确的有（） A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/154170f305f9495183d6eadbbfbc7526.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/5c82cb80164d4bff91f00d2433c71f8f.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/71ba69fdd015468dbb356bb55a217725.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/c510d567fcf749eb8b38b64b08a447d8.png" />
4
下列谓词公式中，是逻辑有效式的是（）。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/fd0bc7b26c6e4d91a8ed04b00fa26874.png"> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/42b2e82315144952b187beceb9f746e3.png"> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/efd3b37c91244207886d59b1bd2fdb1e.png"> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/e91d4c4332bb4e12a6e417031fb605fe.png">