boost
(1) appositely a.艰难地推动 ______
(2) arduously b.有力地促进 ______
(3) artfully c.热情地激励 ______
(4) fervently d.适当地激励 ______
(5) forcibly e.巧妙地激励 ______

【参考答案】

(1) d
(2) a
(3) e
(4) c
(5) b