以下选项中（）不属于静电损害的特点。
A.隐蔽性
B.潜在性
C.固定性
D.复杂性
参考答案：C
一些食品常用袋装氧化钙作干燥剂．氧化钙属于（ ）
A．氧化物
B．酸
C．碱
D．盐
His wife is very ____about dress and she is strongly _wearing _____clothes on formal occasions. [ ]
A. special; against; informal
B. particular; opposed to; casual
C. especial; against; casual
D. strict; opposed to; usual
