牙本质所含无机物约占重量的
A.90%B.80%C.60%D.70%E.50%
参考答案:D
—What if I move the picture over there?Do you think it’ll look better?
—________.Let me give you a hand.[ ]
A. I don’t agree with you
B. That’s right
C. I couldn’t agree more
D. With pleasure
正常淋巴结的形状及横径是()
A.圆形,<2mm
B.长形,>6mm
C.豆状,5mm
D.卵圆形,<4mm
E.条形,>6mm