6时整的时候，指针式钟表的时针和分针成（ ）角；2时整的时候，时针和分针所成的较小角是（ ）角。
平，锐
She couldn't ______ her words ______ by the students. [ ]
A. get; understanding
B. get; understood
C. make; to understan
D. make; understand
根据联合国海洋公约的规定应划归我国多少平方公里海洋面积？
