创造性地培养,常用方法有()。
A.提供具有创造性地榜样
B.头脑风暴训练
C.自我设计训练
D.发散思维训练
E.推测与假设训练
参考答案:B,C,D,E
一简谐波的波源在坐标原点o处,经过一段时间振动从o点向右传播20cm到Q点,如图所示,P点离开o点的距离为30cm,试判断P质点开始振动的方向。
根据句意及首字母提示填单词,使句意完整,请注意单词的正确形式。
小题1:Tom often r_________ .his bike to go to the zoo.
小题2:Some students are playing soccer on their school p_________.
小题3:—Dou you think English is easy?
—No. I think it’s a little d_________ .
小题4:We can’t see the ball because it is b ________ the door.
小题5:It’s about 130 k_________ away from Beijing to Tianjin.