A:1<x<6
B:﹣1<x<3
C:1<x<3
D:﹣1<x<6
She ____ (have)a new bike.
选出填入下列语句衔接最恰当的一项( )
读书的时候,人是专注的。因为你在__________,不由自主地__________,即使是读闲书,看到妙处,也会__________……长久的读书可以使人养成恭敬的习惯,知道这个世界上可以为师的人太多了,在生活中也会__________,而倾听,是让人__________。
①沿袭洗耳倾听的姿态
②聆听一些高贵的灵魂自言自语
③神采倍添的绝好方式
④谦逊和聚精会神
⑤忍不住拍案叫绝
用所给动词的适当形式填空。(1)He____ (prefer) outdoor activities to films last year.(2)No country ____ (make) such great progress as China in the past thirty years(3) I called you this morning, but nobody answered it. Oh, I ____ (iron) shirts in the bedroom.(4)We should prevent air pollution ____ (live) a happier life.(5)We hope that more charity shows ____ (hold) to raise money for Project Hope.
①写出红磷在空气中燃烧的化学反应表达式____.
②待红磷熄灭并冷却后,打开弹簧夹,观察到烧杯中的水进入集气瓶,瓶内水面最终上升约至1刻度处.由此可知氧气约占空气总体积的____.
③红磷熄灭后,集气瓶内剩下的气体主要是____,该气体____(填“支持”或“不支持”)燃烧.