若f(x)=2lnx﹣x2,则f′(x)>0的解集为( )
A:(0,1)
B:(﹣∞,﹣1)∪(0,1)
C:(﹣1,0)∪(1,+∞)
D:(1,+∞)
我国实行计划生育政策,但目前每年新增人口仍达1200多万,主要原因是( )
关于细胞膜结构的流动镶嵌模型的论点中,论述错误的是( )
判断下列句子与短文内容是否相符。
Hi.I'm an English girl.I'm Jane.I'm 143 cm tall and 42 kg.I studied in Shanghai last year.I had many Chinese friends.My best friend is Liu Ying.She is 161 cm tall and 51 kg.Last weekend we went to a park.We went shopping,then we saw a film.We were very happy.I love my friends.