A:《权利法案》
B:《独立宣言》
C:《人权宣言》
D:《共产党宣言》
如图所示.物体M在水平导轨上平移时.带动滑动变阻器的滑片P移动,通过电压表显示的数据,可反映出物体移动距离的大小.下列说法正确的是( )
We __________ a football game this afternoon.
I have no difficulty __________ writing, but I have some difficulty __________ pronunciation.