A国总理在实施经济改革过程中，遭遇到议会的不信任案。为此总理提请总统解散议会，进行议会选举，由新组成的议会来决定总理的去留。根据材料可以判断出（   ）

①A国的政府对总统负责

②A国的总统是国家元首

③A国实行民主共和制

④A国的政府由议会产生，对议会负责

    The giraffe is the tallest modern land animal. It can be over 5. 5 meters tall. Its neck alone may be 1. 9 meters long. Yet the giraffe has only seven bones in its neck, the same number as in the humans'. Even a small bird has many more bones in its neck than a tall giraffe. Each bone in a giraffe's neck is very long, while the bones in a human's neck are short. That makes the difference. A female giraffe gives birth to one baby at a time. The baby, called a calf, is about 1. 9 meters tall at birth. By the age of eight it is full-grown. The giraffe eats mostly leaves. Because it has a long neck, it can reach the high leaves on the trees.

根据短文内容，选择正确答案。

下面两个储物箱都是正方体。