柴油车排除的烟色一般分为黑烟、蓝烟和白烟三种。
参考答案:对
“华赛杯”数学竞赛获奖的95名学生来自12所小学,则至少有 名学生来自同一所学校.
Advertising is different from other forms of communication _________the advertiser pays for the message to be delivered.
A.in which
B.in order that
C.in that
D.in the way