绘制固定式铅酸蓄电池温度与容量的关系曲线。

化学是在______层次上研究物质______，______，______，______的科学．

The man______ you talked just now is a worker.     [ ]

A. who              

B. whom              

C. to whom            

D. to who

如图为人体血液循环过程模式图，请据图回答下列问题：

（1）如图所示四条血管中含静脉血的有______．

（2）若静脉注射药物，则药物经过心脏各腔的先后顺序是______（用字母和箭头表示）．

（3）当膈肌处于______状态时，气体入肺．

（4）②所代表的气体是______，它进入组织细胞后在细胞的______部位被利用．

（5）若E处代表的是小肠绒毛处毛细血管，经过此处后，血液变为含______丰富的______血．

Questions 11 to 15 are based on the following interview.

A. They are financially capable to make both ends meet living there.
B. They have high expectations for a quiet community of isolation
C. Some are disappointed but many more are happy with the community.
D. Some have high incomes and others are working class folks.