共和的基本原则是()
A.天下为公
B.国家权力和财富共有
C.民主宪政
D.自由平等
E..人们以和平的方式参与和处理公共事务
参考答案:A, B, E
----It is ______ that self-protection education is required at school.
----I agree. We always have a large course ______ months.
A.certainly; every a few
B.certain; every few
C.sure; every a few
D.surely; every few
直肠癌中预后最差的是
A.恶性黑色素瘤B.未分化癌C.腺癌D.粘液癌E.鳞状细胞癌