①开阔视野,丰富知识 ②合作学习,互助学习
③解疑答惑,加强交流 ④迅速提高学习成绩
A:①②③
B:①③④
C:①②④
D:②③④
“我以我自己以及我妻子的名义宣布,我们将衷心接受这个宣言……我们以……议会制定的法律作为治理这个国家的准则……”听秘书朗读完后,他面色严肃地当众宣布接受宣言,然后戴上王冠。“这个宣言”是指
(Ⅰ)若t=1,证明x=1是函数f(x)的极小值点;
(Ⅱ)求证:f(x)≥0.
一直以来,杂交育种都是人类提高农作物产量和品质的主要技术,而杂交障碍的主要原因之一就是雌雄配子体的有效识别。中国科研工作者经过多年研究,首次发现植物雌雄识别的分子机制,为杂交育种开辟了新天地。由此可见( )
①实践中遇到的问题推动了人类认识的发展②研究中获得的正确认识促进了实践水平的提高③科学技术是生产方式中最活跃的因素④认识和把握真理是科学研究的最终目的
Today , we asked some students about what they think of their deskmates . Here are some of the results .
Grace : 13 years old
My deskmate is Kitty . She is really a kind and quiet girl . She is more hardworking than me , and she can always get good grades in exams . So I learn a lot from her . She often helps me with my study . With her help , I think I can improve my study very quickly .
My deskmate is Vera . She is quite friendly and talented in a lot of things such as drawing and writing . She is more creative than me . Last month , she asked me to visit her home . I saw a lot of wonderful pictures on the wall . I thought they were from famous painters , but I was wrong . All the pictures are her works(作品).
Lisa : 13 years old
Rick : 14 years old
My deskmate is Paul . He is taller and stronger than me . Both he and I like sports . However , I like soccer but he likes basketball . He plays basketball better than me , and now he plays for our basketball school team . He thinks playing basketball can bring out the best in him .
近年来,我国许多地方发生了医患纠纷事件,出现了很多医患矛盾,面对医患矛盾,政府必须( )
①贯彻依法治国,坚持依法行政
②依法加强监管,打造服务政府
③消除医患矛盾,维护社会和谐
④健全法律保障,协调医患关系