Question

下列哪一种由全等正方形组成的图案，不能沿所示线折成一个立方体？

Which pattern of identical squares could not be folded along the lines shown to form a cube?

五个图案都由 $6$ 个正方形组成。把 A、B、C 和 E 折叠时，各正方形能分别覆盖立方体的六个面。

对图案 D，无论怎样折叠，都会迫使两个正方形落在同一个面上而重叠，所以不能形成立方体。

所以正确答案是 D。

Each of the five patterns has $6$ squares. Folding patterns (A), (B), (C), and (E) wraps the squares neatly onto the six faces of a cube.

For pattern (D), any attempt to fold forces two of the squares to land on the same face, so they overlap and no cube can be formed.

Thus, the correct answer is D .