天文学家借助“哈勃”太空望远镜的观测结果证实，一颗形成于距今约127亿年前的行星是迄今已知的最古老行星，这一发现为研究宇宙中行星的形成历史提供了新线索。这说明
①意识对改造世界具有指导作用 ②意识活动具有主动创造性和自觉选择性
③意识活动具有目的性 ④没有尚未认识之物，只有不可认识之物
| A．①② | B．①④ | C．②③ | D．③④ |
相关试题
If you find yourself _____________ no one will help you, please call me．
| A．where | B．when | C．which | D．what |
Meetings were held to update employees as soon as new information became ___________．
| A．flexible | B．convenient | C．available | D．private |
Premier Wen Jiabao encouraged citizens to read more on World Reading Day, which_____________ on April 23.
| A．turned | B．adopted | C．started | D．fell |
She never dreamed of________________ a chance for her to meet her old friends again．
| A．there was | B．there being | C．there to be | D．being |
ed．
which
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