作为培养班集体的主要方法之一,激励法包括目标激励法和______激励法。
参考答案:竞赛
(2013·四川省宜宾五校二调)A recent study has ________ an unexpected conclusion that the African elephant should be divided into two different species.
A.kept up with
B.made up with
C.caught up with
D.come up with
CT机X线发生装置,不包括()
A.高压发生器
B.X线球管
C.冷却系统
D.探测器
E.滤过器