托福考试

【单选题】
A、To discover how long their ancestors liveD、
B．To analyze how their appearance has evolveD、
C．To find out how a disease has spread
D．To determine how closely groups of turtles are relateD、

网考网参考答案：D
网考网解析：
How is DNA used in research on green turtles document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>