右图为细胞的生物膜系统的概念图,相关叙述正确的是( )
A:从进化的角度看,是因为先有a的出现才有了相对独立的生命系统
B:图中m、p所示结构上都有H和ATP的生成和水的分解
C:图中g是囊泡,它的活动充分体现了生物膜的选择透过性
D:图中的f和h分别是指内质网和高尔基体
下列现象能说明铁在氧气中燃烧是一个化学变化的本质现象是( )
用方框内所给单词或短语的适当形式填空
(1) Could you ____ me ____ my lessons this evening, please?(2)____ May Lee ____ from school the day before yesterday?(3) The children____ in the park now.(4) It’s time____ . Let's begin.(5) Can you____ your picture to me?(6)____ taking a walk after supper ____ your health? --I think so.(7) Do you enjoy ____ vegetables?(8) Open your books and ____ to Page 50, please.(9) Could I ____ your bike, please, please? Mine is broken.(10) It's very cold outside. You must ____ your overcoat.
解释下列词语。
①枯燥
②苏醒