As a famous dancer, she needs ____ (dance) for two hours every day.
将下列词组与对应的图片匹配。
( 1 ).answering the phone ____
( 2 ).climbing mountain ____
( 3 ).drawing a picture ____
( 4 ).picking up leaves ____
( 5 ).making a snowman ____
A. B. C.
D. E.
将如图中几何体的截面用阴影部分表示出来,并分别指出它们的形状.