简述护理文书书写改错标准。
参考答案:书写中出现错字,双横线划在错字上,然后在其上方书写,注明修改日期及签名;不允许在日期及时间上改错。每页修改次数低于2次。
He turns deaf ear to his parents, ________ many times they have pointed out his weaknesses.[ ]
A. whatever
B. whichever
C. however
D. whenever
煤矿企业在安全生产许可证有效期满时,()延期手续,继续进行生产,是一种违法行为,应当承担相应的法律责任。
A.已办理
B.未办理
C.刚办理
D早已办理