《本草纲目拾遗》的作者是（）
A．陶弘景
B．赵学敏
C．李时珍
D．唐慎微
E．苏敬
参考答案：B
A．Their raise will be more than $ 5 a day.
B．Their raise will be less than $ 5 a day.
C．Their pay will be raised by $ 5 a day.
D．They won’t receive the raise of $ 5 a day.
题53图所示的传输介质是（）
A.屏蔽双绞线
B.非屏蔽双绞线
C.同轴电缆
D.光纤
