骨骺线
参考答案：
管状骨的干骺与继发性骨化中心之间的骺板，随年龄增长，逐渐变窄，表现为透亮线，称为骨骺线。
—Do you know Jim quarreled with his brother?
—I don't know, ______.[ ]
A. nor don't I care
B. nor do I care
C. I don't care neither
D. I don't care also
金属棒很难被压缩的现象，可以说明分子间：______．
