單項選擇題
A.節(jié)點B.屬性C.表達式D.通配符
A.FileB.FTPC.HTTPD.HTTPS
A.HTTPB.RobotsC.CrawlerD.Spider
A.通用網(wǎng)絡爬蟲B.聚焦網(wǎng)絡爬蟲C.增量式網(wǎng)絡爬蟲D.內網(wǎng)爬蟲
A.正則表達式B.XPathC.Beautiful SoupD.JSONPath
A.FileB.FTPC.HTTPD.Mailto
A.x？B.x+C.x！D.x?
A.driverB.timeoutC.poll_frequencyD.ignore_exceptions
A.try-exceptB.try-catchC.try-exceptionD.try-catcherror
A.webdriver.support.expected_conditionsB.webdriver.support.ui.expected_conditionsC.webdriver.expected_conditions
A.flagB.patternC.stringD.flags
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