对于宽大陆架的沿海国确定大陆架的宽度从领域基线量起可划到（）
A.240海里
B.350海里
C.400海里
D.360海里
参考答案：B
After the snowstorm, mailboxes in the community were covered by snow, or _______, or lying on the ground.
A．breaking
B．being broken
C．having broken
D．broken
