这一题不会
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>你对什么运动感兴趣</title>
</head>
<body>
<form>
<label for="basketball">篮球</label>
<input type="radio" name="sport" id="basketball" />
<br />
<label for="accend">登山</label>
<input type="radio" name="sport" id="accend" />
<br />
<label for="jogging ">慢跑</label>
<input type="radio" name="sport" id="jogging"
<input type="email" id="email" placeholder="Enter email">
</form>
</body>
</html>
