混炼效果比较好的方法是()
A、开炼机法
B、密炼机法
C、螺杆挤出机法
D、挤压法
参考答案:B
After living there for one year, they have _______there.
A.accustomed to working
B.accustomed to work
C.been accustomed to working
D.been accustomed to work
霍乱红试验()
A.可鉴别古典生物型和ElTor生物型
B.为霍乱弧菌特异试验
C.可鉴别霍乱弧菌和副溶血弧菌
D.可鉴别O1群和非O1群霍乱弧菌
E.无特异性