底板混凝土浇筑完成后,应视气温与混凝土硬化情况适时覆盖并洒水养护,时间不少于规定的( )d。
A.7B.15C.14D.20
参考答案:C
药品生产企业在召回完成后,应当进行哪些工作?
More and more students are ________ reading in our school.
A.benefiting from
B.comparing to
C.giving off
D.setting out