Test center:? Judging geometry from three views. ?

Analysis:? There are two small cubes at the bottom of the left view, and the front view is the same as the left view, so it can be judged that there are at least three small cubes at the bottom of the geometry. There are at most four cubes. According to this idea, how many cubes does this geometry have?

Answer:? Solution: the left view is the same as the front view. It can be judged that there are at least 3 small cubes at the bottom and at most 4 small cubes, and the second row is? There are only 1 cubes. Then there may be 4 or 5 cubes in this geometry. So choose B.

Comments:? This question examines the geometry of three-view judgment, which is not difficult. This paper mainly examines the candidates' spatial imagination ability and related knowledge of the three views.