10 Who is responsible for hiring new employees?
Initial marketing activities were based on the expansion of______.
__ can reduce the pollution problem and increase the fuel efficiency of engines.
According to the passage, who also use marketing techniques to achieve their goals?
Someyoungsters____(对在网吧玩游戏已经上瘾).
Sales in 1990 fluctuated before dropping sharply, whereas in 2000 sales remained constant throughout the period.