德意志诗人诺瓦利斯（1772——1801）认为，哲学是全部科学之母，科学的发展又会推动哲学的进步。他能够举出的最佳论据是（   ）

按照图的要求画出滑轮组的绕绳方法(不计滑轮重、绳重及摩擦)

    Hello! I'm Ben. This is my new living room. It's quite big. There is a chair and two big sofas. There are some flowers beside the sofa. Between the sofas, there is a lovely cat. There aren't any pictures but a clock o n the wall. There is a computer on the desk next to the sofa. There is a TV set on the TV stand(电视柜) under the window. I often watch TV in my living room. What a nice living room.

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读某调水工程图，完成下列问题。