轴瓦若存在间隙过大，乌金局部脱落，有裂纹及砂眼等缺陷，可用局部补焊消除。
参考答案：对
银杏和杏的主要差别是
A．根、茎、叶是否发达
B．生长期的长短
C．种子有没有果皮包被
D．能否耐干旱和贫瘠
Whitney Houston’s sudden death suggests that drug abuse is such a serious problem ______ we should
deal with properly. [ ]
A. as
B. that
C. which
D. where
