下面五行配属“水”的是()
A.肾
B.咸
C.肝
D.骨
参考答案:A, B, D
—Could you see ______?
—No, let's go and have a look. Maybe we can help. [ ]
A. what are they doing
B. what was happening there
C. what is happening there
电阻两端电压为10V,电阻为10Ω,当电压升至20V,电阻值将为20Ω。