问题
单项选择题
蓝氏贾第鞭毛虫滋养体有几对鞭毛()
A.1对
B.2对
C.3对
D.4对
E.5对
答案
参考答案:D
蓝氏贾第鞭毛虫滋养体有几对鞭毛()
A.1对
B.2对
C.3对
D.4对
E.5对
参考答案:D
Everybody needs water. Everything 16 water,too. We use water 17 the bowls, the clothes, and 18 .We use water to plant trees, flowers and crops. 19 does all water come from? It 20 from clouds. Some of rain 21 into the ground. Many people get 22 from under the ground. Some rain water goes 23 the hills. It runs 24 lakes and rivers. Many people get it 25 .
|