下列词语中如有错别字,请加以改正。(4分)
遗笑大方( )
参考答案:遗(贻)笑大方
—Excuse me, could you tell me where the post office is?
—__________, but I’m a stranger here.
A.I’m not sure
B.I’m sorry
C.That’s righ
D.I’m afraid not
采用芳香族合成鞣剂复鞣铬鞣革具哪些特点?