A:x= 1±52
B:x= x+1
C:x=± x+1
D:无实数根
I w____ to Qingdao with my parents last summer holiday. We t____a plane there. We went to the beach. It was very b ____. I like swimming very much. I s____in the sea. My mum took many p____ there. We had a good time.
给划线字选出正确的读音
①小鸟扇(shān shàn)____动着翅膀在天空中飞来飞去。
②爷爷手里握着一把扇(shān shàn)____子。
③秋雨像一把钥匙,趁你没(méi mò)____留意,把秋天的大门打开了。
④这场雨太大,路上的积水没(méi mò)____过了行人的膝盖。
阅读《童趣》,回答问题。 余忆童稚时,能张目对日,明察秋毫,见藐小微物,必细察其纹理,故时有物外之趣。 夏蚊成雷,私拟作群鹤舞空。心之所向,则或千或百果然鹤也。昂首观之,项为之强。又留蚊于素帐中,徐喷以烟,使其冲烟飞鸣,作青云白鹤观,果如鹤唳云端,怡然称快。 余常于土墙凹凸处,花台小草丛杂处,常蹲其身,使与台齐;定神细视,以丛草为林,以虫蚁为兽,以土砾凸者为丘,凹者为壑,神游其中怡然自得。 一日见二虫斗草间,观之正浓,忽有庞然大物拔山倒树而来,盖一癞虾蟆也,舌一吐而二虫尽为所吞。余年幼方出神,不觉呀然惊恐。神定,捉虾蟆,鞭数十,驱之别院。