空心墙砌到( )以上高度时是砌墙最困难的部位，也是墙身最易出毛病的时候。
A．1.2m
B．1.5m
C．1.8m
D．2.0m
参考答案：A
—Which do you prefer, orange juice or cola?
— ______, thanks. I’d like just a cup of tea.[ ]
A. Either
B. Neither
C. Both
D. None
802-286-314=（______）-（______（______）______）．
