__________is the seventh month of a year. [ ]
A. August
B. July
C. June
D. November
答案:B
红与绿、黄与紫、蓝与橙构成了三对互补色。
北沙参的别名是()
A.紫河车
B.草河车
C.空沙参
D.东沙参
E.潞党参