Gestational choriocarcinoma is a lowly invasive tumor.

These forms were not "improved" because they were______. A: too successful to need improvement B: too lowly to warrant improvement C: too insane to improve artistically D: bot

Embrace ____? A: v. to eagerly accept a new idea, opinion, religion, etc. 接受;拥抱 B: v. to offer help or give sth., especially money or goods to sb.贡献;捐赠 C: v. to get control of a place or object 抓住;掌握 D: a. modest; lowly 谦逊的;低下的