_____ the advantages against the disadvantages, I decided to take up the job as a clerk in the bank. [ ]

A. To weigh

B. Weighing

C. Weighed

D. Having weighed

某女，24岁，生育史：2-0-1-0，妊娠20周，无胎动，下腹膨隆不明显。检查：宫颈口闭，无血染，子宫大小与妊娠月份不相符、B超示胎心消失。入院后最重要做下列哪一项检验()

A．心肌酶谱

B．血肝功能

C．凝血功能检查

D．血DNA测定

E．血红蛋臼