题型:问答题 A large number of journalists from both home and abroad gathered in Beijing to________the2008 Summer Olympic Games.[ ]A. interview B. coverC. approve D. compete 查看答案
题型:问答题 A:条件(1)充分,但条件(2)不充分. B:条件(2)充分,但条件(1)不充分. C:条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分. D:条件(1)充分,条件(2)也充分. E:条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.a,b的算术平均值为. 查看答案