中小型危险化学品生产企业不必为从业人员缴纳保险费。
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LastFridayIsawsomeboys______behindDaniel,_____thecomputergames.
Heborrowedabooktheotherday，theauthor____isaworker.
Hearrived____London____acoldwinternight.
I______thatIwereabird.
Allwewanttodo______tofindenoughwater_______thehorses.
