题型:问答题 简答题 ______sent from Florida for all the children in Cabin Six.A.A crate of orange wereB.A crate of oranges wereC.A crate of orange wasD.A crate of oranges was 查看答案
题型:问答题 简答题 关于生物学宽度哪项正确?()A.龈沟底与牙槽嵴顶之间的恒定距离约2mm B.龈沟底与牙槽嵴顶之间的距离约2mm,其改变可反映牙周状况 C.牙周炎时牙槽骨水平吸收,生物学宽度增大 D.牙周萎缩时生物学宽度变小 E.随年龄增长上皮附着根向迁移,生物学宽度变小 查看答案