托福考试

【单选题】
A、Iron from old ships.
B．Wood found floating in the ocean.
C．Seashells of unusual shapes and colors.
D．The bones and teeth of whales.

网考网参考答案：D
网考网解析：
From what material dose screemshore usually made document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>