Power electronic devices may be classified into four categories:______ 、______ 、______ 、______ .
举一反三
- Culture may be classified by three large categories of elements, namely, artifacts, , and behaviors.
- Chinese characters are generally classified into four categories and they are pictographic characters, ideographic characters, associative characters and ____.
- 1.All electronic computers are made up of four basic units although they may be of different kinds.( )
- The competition can be classified into few categories, such as ( )
- On the basis of shape, almost all the bones may be classified into four main types: _____, _____, _____, and _____. A: long B: short C: irregular D: flat