蔬菜水果中不含有（）
A.维生素A
B.硫胺素
C.核黄素
D.维生素C
E.胡萝卜素
参考答案：A
—The hazy weather has ________ for almost a week in North China.
—Yes, and the government has tried to solve it.
A．finished
B．lasted
C．begun
D．passed
属于长效栓塞剂的是（）
A.自体血凝块
B.自体肌肉块
C.皮下脂肪
D.明胶海绵
E.聚乙烯醇
