Our boss will be on business next week, and he asked me to book a ticket for him.
A:leader of a family
B:leader of a company
C:leader of a country
违法行为是指( )
①依法应受刑罚处罚的行为 ②不履行法定义务的行为
③做出法律所禁止的行为 ④会受到舆论谴责的行为
已知m→=(2﹣sin(2x+π6),﹣2),n→=(1,sin2x),f(x)=m→•n→,(x∈0,π2)
(1)求函数f(x)的值域;
(2)设△ABC的内角A,B,C的对边长分别为a,b,c,若f(B2)=1,b=1,c=3,求a的值.
The ship was ____ (lock) in the ice during the whole winter.
下列句子中,没有语病、句意明确的一句是( )