which substance in body contains iron?
举一反三
- 1、which substance in body contains iron? A: Hemoglobin B: Opsin C: Immunoglobin D: PTH
- If iron contains more than ____% C, the alloy is referred to a cast iron（） A: 2.11 B: 0.77 C: 4.3 D: 0
- n. a substance that is put into the blood and that protects<br/>the body from a disease______
- 中国大学MOOC: _________ is a substance that is put into the blood and that protects the body from a disease.
- 中国大学MOOC: The body of your speech contains _________ main points.