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间歇釜的DCS冷态开车包括哪几个步骤？

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普通高程测量时，视准线不可过于接近地面，最少应在（）以上

A. 10cm
B. 30cm
C. 50cm
D. 100cm

四等水准测量中，黑面高差减红面高差±0.1m应不超过（）

A. 1mm
B. 2mm
C. 3mm
D. 5mm

水准点与观测点的距离可以超过100m。

A. 对
B. 错

1. What is the new world that the speaker talks about in the video?It’s.2. What will objects do with the coming of the Internet of Things?They will be able toand look after us.3. What will objects understand if we feel hungry in the morning?They will understand that we want to.4. Why does the speaker say that the Internet of Things already exists?Because many everyday objects.5. What can we do when intelligent objects do the work on our behalf?We can concentrate on.