以下哪一个命令可用来拷贝所有文件和子文件夹的内容?()
A.FORMAT
B.COPY
C.DIR
D.XCOPY
参考答案:D
Mary likes singing, but she sings very ____________.[ ]
A. badly
B. bad
C. good
D. well
一小儿,10岁,因倒开水时不慎摔倒,双上肢被烧伤,创面渗出明显,创底肿胀发红,触之温度较高,有疼痛,则对该患者烧伤面积和深度的诊断是( )
A.9%,Ⅰ度烧伤 B.10%,浅Ⅱ度烧伤 C.10%,深Ⅱ度烧伤D.18%,浅Ⅱ度烧伤 E.18%,深Ⅱ度烧伤