可用于调查伤寒慢性带菌者的抗体是
A．H抗体
B．O抗体
C．A抗体
D．B抗体
E．Vi抗体
参考答案：E
It seems it is going to rain. You had better ________ the windows open. [ ]
A. not leave
B. leave
C. not to leave
D. to leave
立案监督的检察监督内容是公安机关作出的立案决定。( )
