28. —Could you tell me how to find his house?

—OK. The only access ______ his house is along that narrow road.

A．of

B．with

C．to

D．from

在一次测量中：

（1）螺旋测微器如图甲所示，其示数为___________mm;

（2）游标卡尺如图乙所示，其示数为___________mm。