问题
选择题
下列结构属于动物细胞和植物细胞共有的是[ ]
A．液泡
B．细胞膜
C．细胞壁
D．叶绿体
答案
答案：B
搜题请搜索小程序“爱下问搜题”
下列结构属于动物细胞和植物细胞共有的是[ ]
A．液泡
B．细胞膜
C．细胞壁
D．叶绿体
答案：B
| 从方框中选择五个填入对话空白处,使对话完整.有两个选项是多余的。 | |
B: ______________1____________ A: Why? B: Because I have math and P.E that day. A: ______________2________________ B: Yes, they are. A: Why do you like math? B: ______________3_____________ A: Who is your math teacher? B: Mr. Zhang. ______4_______________ A: And why do you like P.E? B: Because it is relaxing. A: I also think so._______5______________ 1______ 2______ 3_____ 4_______ 5_______ |