光子能量E与波长λ、频率ν和速度C及h(普朗克常数)之间的关系为()。
A.E=h/ν
B.E=h/ν=hλ/c
C.E=h.ν=hc/λ
D.E=cλ/h
参考答案:C
As consumers, we should be careful not to ______ the tricks of advertisers.
A.care for
B.fall for
C.ask for
D.answer for
未加捻的桑蚕厂丝