1 |
2 |
A.100° | B.120° | C.140° | D.160° |
1 |
2 |
A.两条直线被第三条直线所截,同位角相等 |
B.若a⊥b,b⊥c,则a⊥c |
C.若a∥b,b∥c,则a∥c |
D.同旁内角相等,两条直线平行 |
A.90° | B.80° | C.100° | D.50° |
A.65° | B.70° | C.75° | D.80° |
A.平行 | B.相交 | C.平行或相交 | D.无法确定 |
A.∠3=∠4 | B.∠2+∠4=90° | C.∠1与∠3互余 | D.∠1=∠3 |
© 2017-2019 超级试练试题库,All Rights Reserved.