为减少奥运会期间交通拥堵，提高城市空气质量，您最好乘坐（）前往观看奥运体育比赛。
A.公交车
B.私家车
C.出租车
D.摩托车
参考答案：A
His report was so exciting that it was ____ interrupted by applause(掌声). [ ]
A. constantly
B. constant
C. seldom
D. never
《饮片标准通则(试行)》要求炮制晶含水量应控制在
A．1%～3%
B．4%～6%
C．7%～13%
D．15%～17%
E．18%～20%
