题干
The players from the whole country are expected to bring us honor in this summer game.
A：selecting
B：to select
C：selected
D：having selected
答案(点此获取答案解析）
C
The players from the whole country are expected to bring us honor in this summer game.
A：selecting
B：to select
C：selected
D：having selected
条斜线段长是它在平面内射影长的2倍，则斜线与平面所成的角的大小为（ ）