The job of a Web crawler is to browse the World Wide Web.

Endless combinations of HTTP GET (URL-based)parameters are useful for the crawler to get unique content.

A path-ascending crawler would normally ascend to every path in each URL that it intends to crawl.

真实气体的标准态是 ( ) A: f = py的真实气体 B: p = py的真实气体 C: f = py理想气体 D: p = py的理想气体

一个点（Px, Py, Pz）的齐次坐标描述为（ ） A: [Px, Py, Pz]T B: [Px, Py, Pz, 0]T C: [Px, Py, Pz, 1]T D: (Px, Py, Pz)

消费者均衡的条件是（） A: Px/Py=MUx/MUy B: Px/Py=MUy/MUx C: Px•Qx=Py•Qy D: Px•Qy=Py•Qy

There are still several unanswered questions _________with the accident. A: connect B: to connect C: connected D: connecting

‏The telephone used to ______________ you to the absent.‍ A: connecting B: connect C: connected D: have connect

运行下面程序, 代码的执行结果是( )。 ls = [2021, 20.21, "py"] ls.append("2022") print(ls) A: [2021, 20.21, 'py'] B: [2021, 20.21, 'py', '2022'] C: ['2021', '20.21', 'py', 2022] D: ['2022', '20.20', 'py', 2021]

x='py',py='56',则关于eval()函数，以下正确的是： A: eval(x)='py' B: eval(x)='56' C: eval('x')=py D: eval('x')='56'