四六级考试

【单选题】
A、4 years
B．5 years
C．8 years
D．at least 9 years

网考网参考答案：D
网考网解析：
How many years does a student have to study before beginning his life as a doctor document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>