题目

—It's a fine day today. How about _________?—Sounds great! A . go hiking B . go to hike C . going hiking D . to go to hike 答案：C下列说法中错误的是A.减去一个负数等于加上这个数的相反数B.两个负数相减，差仍是负数C.负数减去正数，差为负数D.正数减去负数，差为正数