定额工日完成率是=定额计划总工日数/实际做出工日×100%。
参考答案:错
They believe spirit stays with the body for 3 days, _______someone always stays with the dead person.
A.during this time
B.during which
C.so when
D.during when
血气屏障至少有哪几层组成()
A.肺泡上皮、上皮基底膜、内皮基底膜和内皮细胞
B.肺泡上皮和内皮细胞
C.肺泡上皮、上皮基底膜和内皮细胞
D.肺泡上皮、内皮基底膜和内皮细胞