问题
单项选择题
调整安装控制柜时，应使其水平误差不大于（）
A、1/1000
B、1.5/1000
C、2/1000
D、2.5/1000
答案
参考答案：A
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调整安装控制柜时，应使其水平误差不大于（）
A、1/1000
B、1.5/1000
C、2/1000
D、2.5/1000
参考答案：A
| 阅读短文，完成各题。 | ||
the water. He thinks it is another (其他，另一个) dog. That dog also has a large piece of meat in his mouth. He says to himself, " I want to get his meat. Then I can have two pieces. " He opens his mouth to bark (吠，叫) and his meat goes down (落下) into the water. 根据短文内容，判断句子对(√)错(×)。 ( ) 1. There is a dog with a large piece of meat in his mouth. ( ) 2. He sees another dog in the water, but he doesn't know it's only himself. ( ) 3. He thinks the dog in the water is himself. ( ) 4. At last (最终) he eats two pieces of meat. 选词填空。
6. _____________ the water he looks _____________ and sees himself in the water. 7. That dog also has a large piece _____________ meat in his mouth. |