下载APP
举一反三
【单选题】非牙源性外胚叶上皮囊肿______
A.
囊肿位于根尖周围
B.
囊壁的结缔纤维包膜内含有子囊
C.
囊肿可分为球上颌囊肿、鼻唇囊肿等
D.
囊肿位于颈部正中线上
E.
囊肿常无上皮衬里
【单选题】Human beings have used tools for a very long time. In some parts of the world you can still find tools that people used more than two million years ago. They made these tools by hitting one stone agai...
A.
disastrous.
B.
unpredictable.
C.
exciting.
D.
colourful.
【多选题】下面对晶体智力的描述正确的是( )
A.
它不依赖于文化和知识，而取决于个人的禀赋
B.
它在发展到人的中年之后有下降的趋势
C.
在人的一生中是稳步上升的
D.
它取决于后天的学习