我喜欢风筝。可以说:
A:I like kites.
B:I like that kite.
﹣Wechat(微信)really influences people's life.
﹣ . It is easier for us to keep in touch with others.
小张同学探究“凸透镜成像规律”的实验装置如图所示,其中焦距为15cm的凸透镜固定在光具座上50cm刻度线处,光屏和蜡烛分别位于凸透镜两侧.