2的相反数等于 A.-2            B.2                

 2的相反数等于

A.-2            B2                 C.-            D

答案

A

相关题目

唐代文学家柳宗元说:“周之失,在于制,秦之失,在于政
唐代文学家柳宗元说:“周之失,在于制,秦之失,在于政。”材料中的两个“制”分别是指    A.分封制和郡县制                  B.宗法制
当宇航员乘坐宇宙飞船飞向太空时,必须从生物圈中携带维
当宇航员乘坐宇宙飞船飞向太空时,必须从生物圈中携带维持生命所必需的物质。这些物质应该有(   )A.营养物质、淡水、适宜的温度B.阳光、适
—Sir,could you please put out your cigarette?This is a smoke-free(无烟的)s
—Sir,could you please put out your cigarette?This is a smoke-free(无烟的)school. —________. A.I’m sorry about this                                     
One summer evening as I was cooking dinner, there was a knock at the door. I op
One summer evening as I was cooking dinner, there was a knock at the door. I opened it and saw an old man. But his voice was pleasant as he said, “Good evening. I come to see if you have a room fo
Every morning, she ___________ her daughter before having breakfast. A.  dres
Every morning, she ___________ her daughter before having breakfast. A.  dresses    B.  wears      C.  puts on    D.  dresses up as
丘吉尔在1946年3月5日的演说中指出:“在全部历史中,没有
丘吉尔在1946年3月5日的演说中指出:“在全部历史中,没有一次战争比前不久使地球上这么多地区沦为废墟的这次大战更容易被及时地加以制止,它本
欣赏下面这幅漫画,介绍漫画内容,写出这幅漫画含义。 漫
欣赏下面这幅漫画,介绍漫画内容,写出这幅漫画含义。 漫画内容:                                                      
下丘脑在人体生理调节过程中发挥着重要的作用。如图甲、
下丘脑在人体生理调节过程中发挥着重要的作用。如图甲、乙、丙、丁代表人体内的某种结构或细胞,A、B、C、D代表调节物质。请据图回答: (1)图

最新题目