n个阻值相同的电阻,串联的总电阻与并联后的总电阻之比[ ]
A.n:1
B.n2:1
C.1:n
D.1:n2
答案:B
Please_________this sweater yellow. [ ]
A.color
B.wash
C.spell
患者高热神昏,身目色深黄,腹胀便秘烦躁,鼻衄发斑,舌绛,苔黄褐干燥,脉弦数。治法首选:
A.清热解毒,凉血开窍
B.利湿化浊,佐以清热
C.清热化湿,利胆退黄
D.健脾和胃
E.补养气血