A ring homomophism f from a ring R onto another ring S is an isomophism if and only if kerf=0.( )
举一反三
- Helen gave her daughter （） A: a ring B: to a ring C: for a ring D: with a ring
- The Ring of the Nibelung is generally known as the Ring or the Ring Cycle.
- In The Fellowship of the Ring, Frodo Baggins inherits the One Ring from Bilbo Baggins, his cousin and guardian.
- When can Mr. Carson ring Mr. Prince according to the woman A: He’ll ring Mr. Prince as soon as he returns from lunch. B: He’ll ring Mr. Prince as soon as he returns before lunch. C: He’ll ring Mr. Prince as soon as he goes away from lunch.
- For Shylock, Leah’s ring is a symbol of ___________.