儿童擦腿综合征(tightenlegssyndromechildbehaviorproblem)
参考答案：
是儿童通过擦腿引起兴奋的一种运动行为障碍。
On April 14, 2010, a terrible earthquake happened in Yushu County, Qinghai Province,
_______ the people are still suffering.
A．from their effects
B．of which effects
C．of its effects
D．from whose effects
动压润滑的润滑油要有一定的（）
A.防泡性
B.抗氧化性
C.缓蚀性
D.粘度
