如图是“探究平面镜成像特点”的情景：竖立的透明玻璃板下方放一把刻度尺，刻度尺与玻璃板垂直；两支相同的蜡烛A，B竖立于玻璃板两侧的刻度尺上，以A蜡烛为成像物体。

罗斯福新政的实施意义最深远的是（    ）

蝗虫身体表面坚硬的部分称作

⑴What is he doing ?____                                    A、Sorry , I can't .

⑵Who can help me ?____                                   B、She's at the supermarket .

⑶Am I going to have a birthday party ?____     C、I'm fine , thank you . And you ?

⑷Where is your mum ?____                               D、Yes , you are .

⑸How are you ?____                                          E、He's getting on the bus .