We can conclude from the passage that the scientific means for recycling solid waste______.
A．requires further research
B．is available now
C．remains to be developed
D．is still being experimented

未分类题It can be seen that among all of the factors______.A．spanking plays a strong role in explaining children's aggressive behaviorB．spanking accounts partly for children's negative behavior. in later ageC．mother plays an important role in deciding whether a child is aggressiveD．mother's spanking has the worst effect on a child's behavior

未分类题The research of Tulane University has reinforced that______.A．the earlier a child get spanking, the severer consequence he getsB．when a child receives a spanking decides how far he can go in academyC．spanking has a serious impact on a child's cognitive performanceD．frequent spanking will finally produce an aggressive adolescent

未分类题(2015·全国卷Ⅱ)下列各句中，没有语病的一句是( )

判断题固定资产按照经济用途可以划分为房屋、建筑物、动力设备、生产用具、管理用具四种。()

未分类题Mr. Lee is far too wise a man not______that.A．seeingB．being seenC．seeD．to see