2019-03-04到2019-06-20
第七章消化系统 第七章消化系统单元测验
1、 The roof of the mouth is known as the __.
A:taste buds
B:palate
C:uvula
D:tongue
答案: palate
2、 The crown of the tooth is covered by a layer of ____, the hardest substance in the body.
A:enamel
B:dentin
C:pulp cavity
D:root canal
答案: enamel
3、 The ileum connects to the colon through a sphin