【简答题】配置 200ml0.1mol/L 的 NaOH 溶液,需称量 NaOH 多少克?( NaOH 的分子量为 40 )
【简答题】A.as B.about C.by D.with
【简答题】A.as well B.either C.both D.or
【简答题】A.as for B.since C.after D.because of
【简答题】设l,m,n均为直线,其中m,n在平面α内,“l⊥α”是“l⊥m且l⊥n”的______条件.
【简答题】A.as an B.for an C.as D.the
【简答题】A.as well as B.since C.additionally D.moreover