()资料齐全是市场监管员对卷烟市场资料进行分类时应注意的事项之一。
参考答案:对
Listen to the two girls by the window. What language ___________?
A.did they speak
B.were they speaking
C.are they speaking
D.have they been speaking
《煤矿安全质量标准化》规定,采煤工作面伞檐长度超过1m时,其最大突出部分,薄煤层不超过()mm,中厚以上煤层不超过200mm。
A.50
B.100
C.150
D.200