A:almost have
B:almost had
C:almost did
D:might have
设 f(x)=xlnx ,若f'(x0)=3 ,则 x0= ( )
陈独秀在新文化运动时期启示青年,必须树立变革现实的思想,要有探索的勇气和创新的胆识,“应战胜恶社会,而不被恶社会所征服”。陈独秀为了“战胜恶社会”,希望青年们高举的两面大旗是( )