When does the metanephros become functional?
A: At week 3 of development
B: At week 4 of development
C: At week 10 of development
D: Just before birth
A: At week 3 of development
B: At week 4 of development
C: At week 10 of development
D: Just before birth
举一反三
- 中国大学MOOC: When does the metanephros become functional?
- 16.As he is not in good health, he goes to his factory only ______ just to learn something about the progress of experiment. a. once a week b. one week c. one time a week d. one a week A: once a week B: one week C: one time a week D: one a week
- They will be back home（） A: a week later B: after a week C: in a week D: a week
- When is the upcoming conference in Atlanta? A: It's the 3rd week of October. B: It's the second week of October.
- When did the woman give up smoking A: [A] Ten days ago. B: Just this morning. C: A week ago. D: Just yesterday.