_____ October, 2003, we went to Liaoning. ( )
用科学计算器计算:8+3sin56°≈____ (精确到0.01)
①分清主流和支流,但不忽视支流
②密切关注实际,敢于破除成规陈说
③抓重点,但也要重视解决次要矛盾
④对未来充满信心,但也要正视问题