很多同学喜欢上网查资料。如果你在百度网上搜索《上甘岭》,同时你还可以了解到( )
微生物培养过程中,肉眼鉴别金黄色葡萄球菌和枯草杆菌的重要依据是( )
如图,A,B,C是⊙O上三点,∠ACB=25°,则∠BAO的度数是( )
E____ with new scientific farming methods, they have been able to use less farmland than in the past.