状态行中的锁定标识下的全部的意义为（）。
A、锁定所有工具栏
B、锁定所有窗口
C、锁定所有工具栏和窗口
D、以上都不对
参考答案：C
Young people usually_______ city life to country life while old people ______ enjoy country life.[ ]
A. would rather; prefer
B. prefer; would rather
C. would rather; would rather
D. prefer; prefer
螺旋送风机的巡检内容？
er