一般说来，大多数商品在短期内供给都相当富有价格弹性。 ( )
参考答案：错
(2014·皖南八校联考)________ Yao Ming has retired from the NBA，the pleasure we have got by watching him play basketball at home and abroad will last long.
A．Although
B．If
C．Since
D．Once
在一定空间范围内同一物种所有个体的集合称为______。
