红外线遥控采用()作为载波。
A、无线电波
B、声波
C、激光
D、红外线
参考答案:C
I speak English. And he _____ speaks English. [ ]
A. or
B. either
C. too
D. also
患儿,6岁,双下肢烫伤,护士估计其烫伤面积为
A.20%B.36%C.35%D.40%E.50%