9月23日上午,宁夏各族各界群众两万多人欢聚在银川览山剧场,热烈庆祝宁夏回族自治区成立 周年。
50
植物体的任何一个活细胞,在一定条件下,都有分化并发育成完整_________ 的能力,这叫做植物细胞的___________性。
We had _______ 8-day holiday during this National holidays, but some of us felt unhappy because of _________heavy traffic on the highways.
A.an, the
B.a, the
C.a, a
D.an, a