修治包括的内容是()
A.纯净处理
B.切制处理
C.粉碎处理
D.水制处理
E.火制处理
参考答案:A, B, C
There are many reasons why some children have bad manners, ______ is the ill information on the Internet and in TV programme.
A.one of them
B.it
C.one of which
D.that
牙槽窝最大的牙是
A.上颌中切牙B.上颌侧切牙C.上颌尖牙D.上颌前磨牙E.上颌第一磨牙