志贺氏菌属的细菌通称痢疾杆菌,在我国常见引起的痢疾的是()。
A.贺氏痢疾杆菌
B.福氏痢疾杆菌
C.鲍氏痢疾杆菌
D.宋内氏痢疾杆菌
参考答案:A
保险合同的( )意味着订立的保险合同对双方当事人产生法律约束力。
A.生效
B.履行
C.解除
D.有效订立
New tombs found in Giza support the view that the Great Pyramids were built by free workers and not slaves, ______ widely believed,
A.as
B.which
C.what
D.that