A:正数和负数互为相反数
B:任何一个数的相反数都与它本身不相同
C:任何一个数都有它的相反数
D:数轴上原点两旁的两个点表示的数互为相反数
— _____ would you like, please?
—A hamburger.
—I will have an important test tomorrow. I feel stressed now.—__________ and believe youself. You will pass it.