A:哺乳动物红细胞容易得到
B:哺乳动物成熟红细胞内没有核膜、线粒体膜等膜结构
C:哺乳动物红细胞在水中容易涨破
D:哺乳动物红细胞的细胞膜在光学显微镜下容易观察到
用显微镜观察英文字母“p”的装片时,视野中看到的物象是( )
目前正是西瓜上市的季节,我们吃的红色瓜瓤,是属于西瓜的( )
Our school is on Guangming Street. It's next to the People's Library. There is a park across from our school. The pay phone is between our school and a post office. Our school is very beautiful. There are many trees and flowers in it. If you want to come to our school from the airport, take a taxi and go down Center Avenue. You can see a big restaurant on your right. There is a bridge near the restaurant. Go across it and turn left. Then go down Bridge Street. Turn left at New Park and go down Guangming Street. Our school is across from a bank.