下列几种物质对原子吸光光度法的光谱干扰最大的是()。
A、盐酸
B、硝酸
C、高氯酸
D、硫酸
参考答案:D
选择合适的句子完成对话,其中两项为多余选项。
A: Hi, Henry! Where do you want to go?
B: 1
A: That sounds great. 2
B: I like elephants best.
A: 3
B: Because they are strong(强壮的)and smart. What about you?
A: 4 They are lovely.
B: Where are they from?
A: 5
B: Let's go to the zoo together.
A: OK.
A. They are from Australia.
B. Why do you go to the city zoo?
C. What's your favorite animal?
D. What animals do you like?
E. I want to go to the city zoo.
F. I like koalas a lot.
G. Why do you like them?
当事人对当场处罚决定不服的,有权提起行政诉讼。()