周长相等的平行四边形面积也相等。[ ]
错误
Here is a letter _____________ Lucy to her friend in the USA.[ ]
A. comes from
B. is from
C. come from
D. from
下列类似于半表半里证概念的是
A.肝胆病证B.少阳病证C.气分病证D.中焦病证E.厥阴病证