立地条件类型
参考答案:
是指地域不一定相连、立地条件基本相似的自然综合体的集合。
We on it for several hours but we haven't yet reached any conclusion.
A.are working
B.work
C.have been worked
D.have been working
受到罚款250元处罚的船员,其对应的违法记分分值为()
A.2.5分
B.2分
C.3分
D.1分