初步鉴别肠杆菌科致病菌及非致病菌的试验是
A.葡萄糖发酵试验
B.吲哚试验
C.甲基红试验
D.乳糖发酵试验
E.枸橼酸盐利用试验
参考答案:D
This is a mobile phone. It can be used as a small TV, too.
A.no more than
B.no less than
C.more than
D.less than
功率是表示物体做功()的物理量。
A.多少
B.快慢
C.大小
D.强弱