单项选择题
A.$("tr:even") B.$("tr:odd") C.$("tr:2") D.$("tr:1")
A.<head> <script href="http://cdn.static.runoob.com/libs/jquery/1.10.2/jquery.min.js"> </script></head> B.<head> <script src="http://cdn.static.runoob.com/libs/jquery/1.10.2/jquery.min.js"> </script></head> C.<head> <link src="http://cdn.static.runoob.com/libs/jquery/1.10.2/jquery.min.js"> </link></head> D.<head> <a src="http://cdn.static.runoob.com/libs/jquery/1.10.2/jquery.min.js"> </a></head>
A.<head><script src="my_jquery_functions.js"></script> </head> B.<head><a src="my_jquery_functions.js"></a> </head> C.<head><link src="my_jquery_functions.js"></link> </head> D.<head><script href="my_jquery_functions.js"></script> </head>
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