从1,2,3,4,5,6这6个数字中,任取2个数字相加,其和为偶数的概率是( )
完成下列单位换算:
(1)0.7 MΩ =_______Ω =_________ kΩ
(2)8Ω=______ kΩ=_______MΩ
易伤人血分,可会聚于局部,腐蚀血肉,发为痈肿疮疡的邪气是()
A.风
B.湿
C.寒
D.火
E.燥