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问题 多项选择题

海洋工程地形测量的主要内容包括（）

A、建立平面和高程控制基础

B、水位观测

C、海底地形测绘

D、海底底面障碍物探测

E、海岸、岛礁地形测绘

答案

参考答案：A, B, C, D, E

问答题 简答题

何谓阴复阳留？
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填空题

根据句意及首字母提示，完成下列单词。

1. They are in the same grade, but they are in d_________ classes.

2. Zhao Wei is very beautiful (漂亮的), because (因为) she has two b________ eyes.

3. Yellow and blue can become (变成) g_________.

4. My sister and I have different l_________.

5. Michael, here is a l_________ for you. It's from your teacher.

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