用一根8分米长的铁丝围成一个正方形，这个正方形的边长是______分米．
8÷4=2（分米）；
答：这个正方形的边长是 2分米．
故答案为：2．
The average rainfall in Ningxia is small, _____ makes the climate here is drier ______
with other cities in China.
A．that; compared
B．which; comparing
C．which; compared
D．that; comparing
下列能引起溶血型毒蕈中毒的是（）。
A.鹿花蕈
B.黑伞蕈
C.褐鳞小伞蕈
D.裸盖菇
E.毒伞属蕈
