—Let's join the ping-pong club.

—______.[ ]

A. That sounds good

B. That sounds well

C. That's sound good

D. That's sounds well

畸形中央尖的临床表现如下，除外（）

A.位于前磨牙舌尖三角嵴上

B.圆锥形或钝圆状突起

C.其基底直径约为2mm

D.X线片见内有纤细髓角突入

E.中央尖折断可致牙髓感染