六淫中易扰心神的是
A.风邪
B.暑邪
C.火邪
D.湿邪
E.燥邪
参考答案:B,C
调节系统不等率要求为5±0.5%。
I think it’s really _________ hard work for me to finish the job in twenty minutes.
A.a
B.an
C.the
D.不填