A.105° | B.85° | C.15° |
A.170° | B.135° | C.110° | D.80° |
A.75° | B.105° | C.115° |
A.65° | B.135° | C.100° | D.160° |
A. | B. | C. | D. |
A.105° | B.25° | C.15° | D.135° |
A.15°、65°、120° | B.135°、40°、120° | C.135°、150°、15° |
A.75° | B.105° | C.130° |
A.计算器上的这个键是储存键 | B.锐角+锐角=平角 |
C.测量一间会议室的面积,要用公顷做单位 | D.人脑大约有1400亿个细胞,横线上的数是近似数 |
A.35° | B.75° | C.105° | D.135° |