根管内微生物主要生存于()
A.管间交通支
B.副根管
C.根管侧支
D.根尖分歧及根尖分叉
E.牙本质小管
参考答案:A, B, C, D, E
下列关于Java语言中的方法叙述不正确的是
A.5
B.6
C.7
D.8
3. It is exactly its great success in rural reforms _____ prompted the country to make a bigger leap forward in the reform and opening-up drive.
A.where
B.what
C.that
D.when