A:水参与过程C的第三阶段的反应
B:过程A在叶绿体类囊体薄膜上进行
C:过程C中产生的CO2参与过程B穿过2层磷脂分子
D:X代表的物质从叶绿体的基质移向叶绿体的类囊体薄膜
Do you always understand the instructions on a bottle of medicine? Here's one for John. John is twelve years old. He had a bad cold and coughed(咳嗽) day and night. He went to see a doctor and was given some cough medicine. Please read the following instructions and if you can understand them.
读图,(a、b表示等压面),完成下列要求:
下列句子中,加线词的意义和用法相同的一项是( )
图14示意一年中太阳直射点移动的纬度变化,读图回答