（）指的是两腿前后开立，后腿支撑，膝微屈，脚尖外展约60度；前腿自然伸直，脚尖外展约45度，前脚掌着地。
参考答案：弓步
—Do you know _________ is the tree?
—Sorry, I don't know. It stands there many years.[ ]
A. where
B. how many
C. how old
D. what
SH结构域
