Winning a scholarship starts with getting excellent grades. (翻译)
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施工现场临时用电,同横担上导线的相序排列,面向负荷从左起是()。
A. 1、L2、L3、N、PE
B. PE、L1、N、L2、L3
C. L1、N、L2、L3、PE
D. 任意排列
The park put up a big new sign, picturing a cartoon rabbit giving the directions(翻译)
We were impressed by his straightforward answers. (翻译)
该患儿口服维生素D治疗的剂量和疗程为
A. 维生素D500~1000U/d用1个月
B. 维生素D5000~10000U/d用1个月
C. 维生素D10000~20000U/d用1个月
D. 维生素D20万U/d用1个月
E. 维生素D10000~20000U/d用3个月