南葶苈子原植物为十字花科植物独行菜。()
参考答案:错
It is certain that the International Horticultural Exposition(世界园艺博览会) _____ in the year of 2011 in Xi’an will attract a lot of tourists.
A being held B held C will be held D to be held
带电作业过程中,绝缘导线由于具有较高的绝缘水平,可以不进行绝缘遮蔽。()