四个试点地区报销费用人均最低的县是()。
A.武胜县
B.金阳县
C.叙水县
D.彭山县
参考答案:B
解析:
用每个县报销费用除以该地区参保人数,金阳县最低。故选B。
It was ____ that she couldn’t finish it by herself.
A.so difficult a work
B.such a difficult work
C.so difficult work
D.such difficult work
脂肪酸缺乏会造成人体生长停滞、发育迟缓。