阅读上述材料,回答小题。
两栖类是陆生动物,它们的受精过程已经摆脱了水的束缚.
①BM与ED平行
②CN与BE是异面直线;
③CN与BM成60°角;
④DM与BN垂直.
Location
In the east of Sichuan
Population
About 450,000,0
Famous for
Deng Xiaoping
Weather
Spring,warm Summer, hot
Autumn, cool Winter, cold
The best time to visit
Gives reasons
My hometown
“西湖春色归,春水绿于染.”此处的“绿”主要指哪类植物( )