【判断题】1只要知道圆的直径或半径就可以计算圆的周长。( )
【判断题】创业者很忙,在创业初期不应直接参与推销工作。()
【单选题】对开放出国旅游的目的地国家,由国务院旅游主管部门会同国务院有关部门提出,报国务院批准后,由( )公布。
【单选题】If you have some ____ in working out the problem, turn ____ your friends for help. [ ]
【单选题】Members of the party all appreciate Jackson's wanting to help them______ their difficulties.