A:a tall man in his thirties stepped
B:stepped a tall man in his thirtie
C:did a tall man in his thirties ste
D:did a tall man step in his thirtie
新疆有一怪:“干旱盼太阳”。天气越干旱,塔里木河流域的人们越盼望出太阳。出现这一现象的原因是( )
①认识能否达到最终目的受到特定社会历史条件的制约
②现代科技手段的运用推动了有关恒星团认识的深化发展
③人类的好奇心是推动科学研究深入发展的源泉和动力
④理论完善和认识能力的提高是科学实践成功的首要因素
一 Could you tell me ? I must find him.
一Sorry, I'v no idea. But he was here just now.
名著阅读,阅读下列语段回答问题。