大便隐血试验阳性,提示消化道出血量在()
A.5~20ml
B.30~40ml
C.50~100ml
D.250~300ml
E.500ml以上
参考答案:A
It ____ yesterday.
A. took me two hours to finish the job.
B. spent me two hours to finish the job
C. took two hours me to finish the job
D. took me two hours finishing the job
一代证何时失效?持有一代证的群众该怎么办?