A:So many; used to be
B:So much; is used to being
C:Too many; is used to be
D:Too much; used to be
下列说法正确的是( ).
下列诗句中,劝导我们树立社会责任意识的是( )①先天下之忧而忧,后天下之乐而乐;②横眉冷对千夫指,俯首甘为孺子牛;③衙斋卧听萧萧竹,疑是民间疾苦声;④苟利国家生死以,岂因祸福避趋之。