微丸含药量范围为
A.10%-20%
B.20%-40%
C.30%-40%
D.1%-95%
参考答案:D
Greatly moved by what she did,________.
A.tears came to my eyes
B.my heart was full of gratefulness
C.my eyes were filled with tears
D.I could hardly hold back my tears
某溶液中含有SO42-、SO32-、HCO3-、CO32-等四种离子.将过量的Na2O2固体加入其中后,仍能大量存在的离子是( )
A.SO42-、HCO3-
B.SO42-、SO32-、CO32-
C.SO32-、HCO3-
D.SO42-、CO32-