The two different types of light sensitive elements on the retina are classified as（ ）
举一反三
- The structures can be classified into different types by the______and the types of load-bearing structure .
- Conclusions can be classified into two types:
- Generally speaking, which two types can abbreviations be classified into?
- Abstracts are classified into different types, which of the following is not listed as one type of abstract?
- In U.S.A., there are two different types of cases: criminal cases and civil cases.