The federal government of the United States is comprised of three branches—the legislative, the executive and the judicial, under the principle of separation of powers.()
第1题:
第2题:
第3题:

第4题:

第5题:
第6题:
33、画树枝朝上的为鹿角枝,朝下的我们称为()枝。 Tree branches pointing upward are antler branches, and the downward-pointing branches are () branches.