最早把印度绘在大西洋对岸的地理学家是( )。
A.马可·波罗
B.迪亚士
C.华尔西穆勒
D.托斯堪内里
参考答案:D
如果∠ α+∠ β=90°,而∠ β与∠ γ互余,那么∠ α与∠ γ的关系为[ ]
A.互余
B.互补
C.相等
D.不能确定
—Why are you late for class again?
—I was to go back when the headmaster called us together.[ ]
A. about
B. able
C. used
D. supposed