用罗经点划分方向，相邻两罗经点间的夹角为（）。
A．11°30＇
B．22°30＇
C．11°15＇
D．45°
参考答案：C
Not until his father died _______ what his father really meant.
A．do they realize
B．did they realize
C．realized they
D．had they realized
钝器伤
