A.华托
B.弗拉戈纳尔
C.鲁本斯
D.布歇
第1题:
第2题:
【单选题】以下现象属于波动的是?()
A.荡秋千
B.单摆
C.地震
D.抖动
第3题:
30、关于内能做功,以下说法正确的是___ The following statement about Internal Energy doing Work is true___
A.荡秋千时,会荡秋千的人到最高点时站直,到最低点时蹲下,秋千会越荡越高; When playing on a Swing, the person who plays on a Swing will stand up straight at the highest point and squat down at the lowest point;#B.荡秋千时,会荡秋千的人到最高点时蹲下,到最低点时站直,秋千会越荡越高; When playing on a Swing, the person who plays on a Swing will crouch down at the highest point and stand up straight at the lowest point. The Swing will go higher and higher;#C.荡秋千时,不会荡秋千的人到最高点时站直,到最低点时蹲下,秋千会逐渐停止; In a Sw第4题:
第5题:
45、踏青、荡秋千、插柳、扫墓等是()节的风俗活动。
A.清明
B.端午
C.重阳
D.七夕