下表是夏至日这天四个城市昼夜长短的数据,其中水平运动物体发生右偏的城市是
A、A
B、B
C、C
D、D
答案:C
his work these days,he hash’t _____ when to pay a visit to his parents·
A.Bent On:decided on
B.Worried about;turned on
C.Faced with;taken on
D.Devoting to;focused on
液压油散热器是液压系统中的()元件。
A、执行
B、辅助
C、控制
D、动力