Prices are always rising these days. Up to now, the petrol price _______ 20%.

A．increased by

B．increased to

C．has increased to

D．has increased by

下列句子中文言句式解析错误的一项是

A．赵氏求救于齐。介词结构后置

B．项脊轩，旧南阁子也。判断句

C．晋军(于)函陵，秦军(于)汜南。省略介词

D．能谤讥于市朝。省略主语