下列食品的制作没有应用到发酵技术的是（ ）
A．酸奶
B．馒头
C．泡菜
D．豆浆
答案：D
Look，so many passengers__________ with their smart phones on the underground．
A．played
B．will play
C．are playing
D．have played
农信通标志标准色为（）色
A.蓝
B.绿
C.黄
D.黑
