人们根据特定的需要，预先为计算机编制的指令序列称为 ( )
A． 软件
B．文件
C．集合
D．程序
参考答案：D
You eat _________ food and you are _________ fat now. [ ]
A. much too; much too
B. much too; too much
C. too much; too much
D. too much; much too
DF4B型内燃机车燃油消耗率应不大于（）g/（kw.h）。
A、195
B、217
C、250
D、280
