布氏杆菌病的传播途径有
A．吸入传播
B．蚊虫传播
C．体表接触传播
D．血液传播
E．消化道传播
参考答案：A, C, E
Where ________ Paul and Steven ________ from? [ ]
A. do, comes
B. does, come
C. do, come
D. does, comes
试述发电机转子起吊的程序？
