下列不属于名优烟的是哪一种?()
A、双喜(软国际)
B、黄山(蓝一品)
C、哈德门(软)
参考答案:A
消除应力钢丝按外形分类,可划分为()。
A.人字纹钢丝
B.光面钢丝
C.刻痕钢丝
D.螺旋类钢丝
E.冷拉钢丝
Even teachers can't understand some expressions _____ their students use in daily life.[ ]
A. whose
B. who
C. that
D. whom