如图是狗尿浓缩实验的结果。让狗大量饮水(图中箭头a所示)后,连续排出大量的尿;当将2.5%NaCl溶液10 mL注射入颈动脉(箭头b)后,尿量暂时减少;当静脉
. 生物的体细胞内含有发育成完整个体的全套遗传物质,在人体由DNA控制在肝细胞内合成的物质是 ( ) A.胰岛素和呼吸酶 B.信使RNA和转运R
在两极格局下,不结盟运动兴起。第一次不结盟国家和政府首脑会议召开于20世纪( ) A.30年代 B.60年代 C.40年代
根据课文默写古诗文。(10分) (1)会当凌绝顶, 。(杜甫《望岳》)(1分) (2)
请以“长大”为题写一篇文章。要求:⑴自定立意。⑵除诗歌外,文体不限。⑶不少于800字。
The man insisted that he ____ nothing wrong and that he _____ free. A. had done; be set B. did; was C. had done; would be D. did; would be
After all,he is only a child.______ him ______ what he has done and give him a chance to correct his mistake. A.Forgive;for B.Forgive;of C.Blame;for D.Admire;for
函数y=3cos(2x+φ)是奇函数,则|φ|的最小值是 .