党的全部工作的出发点和归宿是人民群众
A．拥护不拥护
B．赞成不赞成
C．高兴不高兴
D．答应不答应
参考答案：A,B,C,D
呼吸道细菌感染，局部产生的抗体主要是（）
A.SIgA
B.slgG
C.slgM
D.slgE
E.sIgD
When the bus is driving along a busy street, you should be careful not to your head
of the bus window. [ ]
A. stick; to
B. stick; out
C. stick; on
D. stick; up
