（）即有板（即强拍）有眼（即弱拍）。中国乐系音乐中的强弱拍并不像欧洲专业音乐那样有规律地出现。
参考答案：均分律动
At the end of the meeting, it was announced that an agreement ________.
A．has been reached
B．had been reached
C．has reached
D．had reached
零件草图的尺寸标注应该（）齐全和清晰。
A．合理
B．完整
C．正确
D．简明
