抑制膳食中非血红素铁吸收的因素______。
A．胃酸分泌过多 B．维生素CC．植酸、草酸和单宁酸 D．钙E．维生素D
参考答案：C
If he shouldn't have been so ____ about his food, he would be healthier now. [ ]
A. special
B. curious
C. particular
D. anxious
低倍数泡沫系统的主要灭火机理是通过泡沫层的覆盖、冷却和窒息等作用，实现扑灭火灾的目的。
