How many sources are cited?
举一反三
- How many kinds of fuel sources do our muscles usually burn?
- How many sources do we have when conducting reference checking?
- A “Preliminary Bibliography” is a list of the sources you have cited in your proposal.
- When the cited information comes from different sources, the in-text reference should include all the sources.
- The circuit is shown as Figure,how many current sources are there in the figure( )[img=536x645]1803a2c16457c15.png[/img] A: 2 B: 3 C: 4 D: 5