A.與上頜骨同步 B.比上頜骨生長(zhǎng)快 C.比上頜骨生長(zhǎng)時(shí)間長(zhǎng) D.比上頜骨生長(zhǎng)時(shí)間短 E.以上都不是
A.6124537 B.6124375 C.6123457 D.6125437 E.6123547
A.2~3歲 B.3~4歲 C.3~5歲 D.4~6歲 E.5~6歲