Equal (1): Everything in this purple space must be equal to 1. The answer is 1-4, placed horizontally; 3-1, placed horizontally.
Math/Linear Algebra
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This is fundamentally different from Web streams' pipeThrough(), which starts actively pumping data from the source to the transform as soon as you set up the pipe. Pull semantics mean you control when processing happens, and stopping iteration stops processing.
“过去主要靠老天，现在更靠技术。”陈雨佳拿出手机，轻点屏幕，“数据从田间传到手机上，何时浇水、怎么施肥，手机里都算好了。”
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