问题
单项选择题
当一日内水位变化不大时，计算日平均水位应采用（）
A.加权平均
B.几何平均法
C.算术平均法
D.面积包围法
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
当一日内水位变化不大时，计算日平均水位应采用（）
A.加权平均
B.几何平均法
C.算术平均法
D.面积包围法
参考答案：C
| 完形填空。选择正确的选项完成短文。 |
| My name is Jenny. I 1 from Canada. I am twelve 2 old. I go 3 a middle school in China. I like China and I like Chinese, 4 . I have a friend. 5 name is Li Ming. He is 6 a letter now. I am sending an 7 on the computer. I want to send it 8 Danny. I also (也) want to buy 9 postcards and 10 them to my mum and dad. |
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