In yesterday's business training course the consultant instructed us that a good salesman must be ______ if he wants to succeed.
A:aggressive
B:conventional
C:visual
D:fragrant
小强学习了中国地理后,在日记中这样描述其地理位置,你认为正确的是( )
下列活动不属于排泄的是( )
设U=R,若集合A=x|y=logx-x2+x,则CUA等于( )