用乳化剂把链烷烃蜡或其衍生物乳化分散后制成的消泡剂是()。
A.矿物油类
B.表面活性剂类
C.链烷烃类
D.硅类
参考答案:C
The discovery of gold in Australia led thousands to believe that a fortune __________.
A.is made
B.would make
C.was to be made
D.had make
原子吸收分析中会遇到哪些干扰因素?简要说明各用什么措施可抑制上述干扰?