离子注入物质必须以带电粒子束或离子束的形式存在。
参考答案：对
As for Latin America generally, there is no reason why, __________ available resources, it cannot become a highly industrialized area.
A．in view of
B．in the name of
C．in the eyes of
D．in terms of
用乙酰丙酮分光光度法测定水中样中甲醛时，用浓硫酸固定后的清洁地表水样品，调节为（）后再进行分析。
A.中性
B.碱性
C.酸性
