( 1 )任何在高速公路上运行的交通工具的时速必须超过 60 公里。( 2 )自行车的最高时速是 20 公里。( 3 )我的汽车只有逢双日才被允许在高速公路上驾驶。( 4 )今天是 5 月 18 日。 问 1 :如果上述断定的,以下哪一定是真的? I .自行车不允许上高速公路。 II .今天我的汽车仍然可能不被允许上高速公路。 III .如果我的汽车的时速超过60公里,那么当日肯定是双日
A.
Ⅰ 、 Ⅱ 、 Ⅲ
B.
仅 Ⅰ
C.
仅 Ⅰ 和 Ⅱ
D.
仅 Ⅰ 和 Ⅲ
E.
仅 Ⅱ 和 Ⅲ
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【简答题】You load an XmlDocument named doc with the following XML. Dictionary World Atlas You need to change the value for the genre attribute to NA for all book attributes. First, you add the following code s...
【单选题】You load an XmlDocument named doc with the following XML. World Atlas Dictionary You need to use an XPath query string to select the two book nodes. Which code segment should you use? ()
【单选题】You load an XmlDocument named doc with the following XML. World Atlas Dictionary You need to use an XPath query string to select the two book nodes. Which code segment should you use? ()
A.
Dim root As XmlElement = doc.DocumentElementDim nodes As XmlNodeList = root.SelectNodes(".")
B.
Dim root As XmlElement = doc.DocumentElementDim nodes As XmlNodeList = root.SelectNodes("book")
C.
Dim root As XmlElement = doc.DocumentElementDim nodes As XmlNodeList = root.SelectNodes("bookstore//book")
D.
Dim root As XmlElement = doc.DocumentElementDim nodes As XmlNodeList = root.SelectNodes("books/book")