秘书人员应当在“有一手”的前提下，争取“三手”兼备，这说明了秘书应具备哪方面的能力
A．管理能力
B．社交能力
C．书面表达能力
D．办事能力
参考答案：C
The teacher asked the students ________.
A．what they were doing at that moment
B．what were they doing at that moment
C．how are they doing at that moment
D．what they are doing at that moment
需采用立位操作的作业有( )。
A．用力较大的作业B．持续时间较长的作业C．精确而叉细致的作业D．需要手足并用的作业
