初级保安员的申报条件是连续从事本职业见习工作1年以上。
参考答案：对
已知直线L1：和直线L2：
(1)求出直线L1的对称式方程；
(2)求直线L1和直线L2的夹角．
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
A.exchange
B.to exchange
C.exchanging
D.exchanged
和直线L2：