Busy and successful as he was, the novelist was willing to _____ any promising young man and give him

all the help he could. [ ]

A. take up

B. pick up

C. make up

D. look up

关于肺癌，下列哪项是正确的（）

A.鳞癌对放疗和化疗不敏感

B.鳞癌通常首先经血行转移

C.腺癌在晚期才发生血行转移

D.未分化癌对放疗和化疗较敏感

E.未分化癌淋巴和血行转移较晚