流式细胞术中常用的DNA标记物是()
A.FITC
B.PE
C.PI
D.RB2000
E.APC
参考答案:C
—Scott is good at painting.
—Yes, his painting is very beautiful. And he can _________ dance very well.
A.also
B.still
C.either
D.never
由于特殊条件下,输气管道中会结冰,甚至会产生水合物,请问防止水合物形成的方法有哪些?