某大学近代世界文学研究组要召开一个探讨俄罗斯名著《战争与和平》的写作艺术研讨会，

The teacher _____ his students to hand in their compositions before Friday. [ ]

A. said

B. told

C. had

D. kept

卵巢恶性肿瘤转移的主要特点是

A．局限于双侧附件

B．淋巴转移至腹膜后

C．血性转移至肝脏

D．转移至大网膜形成腹水

E．直接蔓延和腹盆腔内广泛种植

在开放互连OSI模型中，SDH、ATM各属于哪一层？

Corrosive liquids and acids should have which kind of label?（）

A.Skull and crossbones

B.Yellow and white

C.Red and white

D.White and black

足太阴脾经的络穴是（）

A.太白

B.公孙

C.商丘

D.中封

E.三阴交