旅客在托运的行李中夹带（）属于违章行为。
A.书籍
B.毕业证书
C.教学光碟
D.报纸
参考答案：B
His efforts to raise money for his program were________ because no one showed any intention to
take a cent out of their pockets. [ ]
A. in place
B. in vain
C. in sight
D. in order
菌痢的病原体属于（）
A.志贺菌属
B.沙门菌属
C.类志贺毗邻单胞菌属
D.弧菌属
E.弯曲菌属
