剂量当量的单位Sv与rem的关系是
A、1Sv=102remA
暂无解析
Johnhardlyspeakstoanybodyintheclass,________________?
Weareinterestedintheweatherbecauseit_______ussodirectly—whatwewear,whatwedoandevenhowwefeel.
Parents,teachersinschoolsandcommunicatorsinorusingthemassmediaareallcapableof________ourpotentialinterests.
TheeffectofDarwinistideaof“survivalofthefittest”wasshatteringin()’sfictionalworldofjungle,where“killortobekilled”wasthelaw.
Itisnotdecided________theconferencewillbeheld.
