A.早期裝配B.簡(jiǎn)單C.美觀D.輕便E.適應(yīng)生長(zhǎng)發(fā)育的變化
A.蘭喬型短對(duì)掌矯形器B.C片型短對(duì)掌矯形器C.皮制短對(duì)掌矯形器D.恩根型短對(duì)掌矯形器E.彈簧制短對(duì)掌矯形器
A.8小時(shí)B.16小時(shí)C.24小時(shí)D.以上都不對(duì)