Which group of chemicals are all major toxic heavy metals?
A.Arsenic, Iron, Lead, Mercury
B.Beryllium, Calcium, Lead, Mercury
C.Beryllium, Cadmium, Magnesium, Sodium
D.Beryllium, Cadmium, Mercury, Potassium
- · 有4位网友选择 B,占比50%
- · 有2位网友选择 C,占比25%
- · 有2位网友选择 A,占比25%