给下面加粗的字注音。
①恬静( )
②铿锵( )
③晦暗( )
④蓦然( )
⑤冗杂( )
⑥羁绊( )
①tián
②kēng qiāng
③huì
④mò
⑤rǒng
⑥jī
by the thunder, the little girl dare not sleep in her bedroom.
A.Frightened
B.Frightening
C.Having frightened
D.Being frightened
在透明的溶液中可以大量共存的离子组是 ( )
A.H+、K+、Fe2+、NO3-
B.OH -、Ba2+、Na+、NH4+
C.Mg2+、K+、SO42-、NO3-
D.HCO3-、NO3-、OH -、K+