Trong các mệnh đề sau, mệnh đề nào là mệnh đề đúng?
A.
.
![img1](https://cungthi.online/upload/questionbank3_20201220/eduquestion/2020580451291995710/obj2020580451291995710952121_images/obj2020580451291995710952121_img1.png)
B.
.
![img1](https://cungthi.online/upload/questionbank3_20201220/eduquestion/2020580451291995710/obj2020580451291995710125218_images/obj2020580451291995710125218_img1.png)
C.
.
![img1](https://cungthi.online/upload/questionbank3_20201220/eduquestion/2020580451291995710/obj2020580451291995710651580_images/obj2020580451291995710651580_img1.png)
D. Nếu
chia hết cho
thì
đều chia hết cho
.
![img1](https://cungthi.online/upload/questionbank3_20201220/eduquestion/2020580451291995710/obj2020580451291995710589526_images/obj2020580451291995710589526_img1.png)
![img2](https://cungthi.online/upload/questionbank3_20201220/eduquestion/2020580451291995710/obj2020580451291995710589526_images/obj2020580451291995710589526_img2.png)
![img3](https://cungthi.online/upload/questionbank3_20201220/eduquestion/2020580451291995710/obj2020580451291995710589526_images/obj2020580451291995710589526_img3.png)
![img4](https://cungthi.online/upload/questionbank3_20201220/eduquestion/2020580451291995710/obj2020580451291995710589526_images/obj2020580451291995710589526_img4.png)
Đáp án và lời giải
Đáp án:B
Lời giải: