当警衔高的人民警察在职务上隶属于警衔低的人民警察时，( )的为上级。A．警衔高 B

—How clean and tidy your bedroom is!

—Thank you. It           every day.[ ]

A. cleans

B. is cleaned

C. was cleaned

D. is cleaning

患者如有神志昏惚，心烦舌躁，疮色紫黑，言语呢喃的表现时，中医称之为（）

A.心恶

B.肝恶

C.脾恶

D.肺恶

E.肾恶

多囊卵巢综合征的两个重要特征为（）、（）。

It was not until Mum agreed to take her to KFC, ____was her favorite, ____the girl stopped crying.     [ ]

A. that; that    

B. which; which    

C. that; which        

D. which; that

如图8-2-26所示电路中，电流有效值，I₁=10A，I_C=8A，总功率因数cosφ为1，则电流，的大小为（）A。

A．2

B．6

C．10

D．18