题目

Can you imagine your doctor warning that taking a bath could be unhealthy? In the early 1800s, many doctors thought that bathtubs could carry diseases, so they advised against their use. The advice wasn’t based on personal experience, because few of the doctors owned bathtubs（浴缸，澡盆）. The White House did not even have a bathtub until 1851.  In the 19th century, only one home out of six had a bathroom. A child took only one bath a week. On Saturday nights, children all lined up for their turns to wash in a wooden bathtub in the kitchen. Mothers had to boil the water on t4．如图是绿色植物生命活动的过程示意图，请据图回答：（1）图中A表示的过程为光反应阶段，反应场所是叶绿体的类囊体膜上；图中B表示的过程为暗反应阶段，反应场所是叶绿体的基质中．（2）A为B提供物质ATP和[H]．（3）若忽然停止光照，CO2供应不变，则[H]和ATP量会减少，C3量会增多．（4）图C过程的总反应式：C6H12O6+6O2+6H2O$\stackrel{酶}{→}$6CO2+12H2O+能量．