板层状鱼鳞病的基因定位于()
A.3q21-q22
B.2q33-q35
C.1q21
D.1q25-1q32
E.Xq22.3
参考答案:B
You're driving too fast. Can you drive _____? [ ]
A. more slowly a bit
B. slowly a bit more
C. a bit more slowly
D. slowly more a bit
影响溶液电导率测量的主要因素是()。
A.电极极化
B.电容极化
C.温度,电极极化,电容极化