A.NO气体暴露在空气中
B.往NaOH溶液中通入CO2
C.Cl2通过湿润的有色布条
D.往FeCl3溶液中滴入KSCN溶液
答案:B
My parents used _____ they had to get a new car for my brother.
A.what
B.which
C.all what
D.不填
5岁小儿按公式计算身高、体重及头围约是 ()。
A.118cm 22kg 54cm
B.114cm 21kg 53cm
C.111cm 20kg 52cm
D.108cm 19kg 51cm
E.105cm 18kg 50cm