七年级(人教版)第一章“有理数复习课”(第1课时)评测练习班级姓名座号一、选择题(每小题3分,共12分)1.在EMBEDEquation.3,EMBEDEquation.3,EMBEDEquation.3,EMBEDEquation.3,EMBEDEquation.3,EMBEDEquation.3中,正数有()A.1个B.2个C.3个D.4个2.EMBEDEquation.3的相反数是()A.EMBEDEquation.3B.EMBEDEquation.3C.EMBEDEquation.3D.EMBEDEquation.33.如果EMBEDEquation.3,下列成立的是()A.EMBEDEquation.3B.EMBEDEquation.3C.EMBEDEquation.3D.EMBEDEquation.34.若EMBEDEquation.3则EMBEDEquation.DSMT4( )A.EMBEDEquation.3 B.EMBEDEquation.3C. EMBEDEquation.3D.EMBEDEquation.3二、填空题(第小题6分,共18分)5.EMBEDEquation.3的相反数是;倒数是;绝对值是.6.计算