结束三国鼎立局面的是哪个 * * [ ]
A．北魏
B．前秦
C．西晋
D．东晋
答案：C
He was __________of having asked such a silly question. [ ]
A. sorry
B. ashamed
C. guilty
D. miserable
锚杆机回落时严禁手扶气腿及手把。
