The pork price is expensive. I’ve got about half the amount I had at home and I’m paying      here.

A．as three times much

B．as much three times

C．three times as much

D．much as three times

高级中药调剂员要求能在执业药师指导下完成审方、复核工作。掌握400种常用饮片的规范名称，能独立调配含毒麻饮片的处方。请联系实际工作回答下列问题：中药的处方用名繁杂多样，中药名称常只有一字之差，而功效却相差很大，容易造成错配药品，审方时应注意，请举例解释中药名称的一字之差有哪些情况？