How to set wechat reminder of top mine pool

1. 1.连接AB1，与A1B交于点E，
易知
点E是AB1的中点，
从而DE是ΔACB1的
中位线
，
从而DE‖CB1，
又因为直线DE是平面A1BD内的一条直线
所以CB1‖平面A1BD
证完
2.因为AC1⊥面A1BD
所以，AC1⊥A1D
从而，∠A1DA+∠CAC1=90°
再由∠AC1C+∠CAC1=90°
便得∠A1DA=∠AC1C
从而ΔA1AD∽ΔACC1
从而A1A/AD=AC/CC1
即A1A•CC1=AD•AC
因为CC1=AA1，AD=AC/2
所以有
A1A²=
AC²/2
即，AC²=2A1A²
从而，AD²=AC/2²=
AC²/4=
A1A²/2
从而A1D²=
A1A²+
AD²=
A1A²+
A1A²/2=3A1A²/2
①
又因为A1A⊥面ABC，
所以A1A⊥BD
因为AC1⊥面A1BD，
所以AC1⊥BD
所以，BD⊥面A1AC1，
又因为A1D⊂面A1AC1，
所以，BD⊥A1D
所以，BD²=A1B²-A1D²
因为AB=BB1=A1A
所以A1B²=AB²+
A1A²=2
A1A²
②
综合①，②便有
BD²=2
A1A²-3A1A²/2=A1A²/2=AD²
从而BD=AD
所以，∠ABC=90°
直角三角形
斜边上的中线等于斜边的一半的
逆定理

从而∠A1B1C1=90°
即B1C1⊥A1B1
又因为BB1⊥B1C1
所以，B1C1⊥面ABB1A1

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3. Yes, 804 is available 24 hours a day, but it's very slow in the evening. It won't drive until it's full

4. Firstly, blockchain cannot do without cryptocurrency, and coin an is the largest trading platform for cryptocurrency. Secondly, coin an has launched its own public exchange chain. Coin an intelligent chain can compete with or even surpass Ethereum, which is the layout of the underlying architecture.

6. If you want to place a wechat friend at the top, just click on that wechat. If you hold it for a few seconds, a box will be displayed. There will be a top. Just click on the top, and the wechat friend will be on the top.

7. Unlike other instry players eager to find "instry +", according to Xu Mingxing, what he is doing is to build an infrastructure system for the blockchain and pave the way for instrial development. So far, EuroTech cloud chain group has formed the first infrastructure system "blockchain ecological engine" in the instry with the application of blockchain as the core and multi-level instry empowerment, and its business covers blockchain big data, blockchain business, and so on For the future development of blockchain security, blockchain technology R & D and application, blockchain instry investment, blockchain incubator and other sectors, Xu Mingxing once said that the underlying technology research and infrastructure are the foundation to ensure the stability of enterprises, and improving the public's awareness of blockchain is the key to the development and progress of the whole instry.

8.

Methods and steps of wechat to cancel the reminder function:

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when you want to cancel the reminder, open the wechat home page, and then click "service notice"

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