冰机组包括以下循环：空调风的循环：由风机、包装间、风道、新风补给，F12蒸发器、蒸气

阅读理解。

     Tony and Linda are in the dining hall at Beijing International School. There are fifty tables in it. There are

also some pictures about food and drinks on the wall. In the pictures, we can see juice, tea, pork, beef and

chicken. We can see some vegetables, too. They tell us what healthy food is and what healthy drinks are.

     Tony and Linda come from America. They both like Chinese food and drinks. Tony likes eating noodles

① _______Linda ②________eating noodles because she can't use(使用)chopsticks(筷子). Tony doesn't

eat pork. He thinks it is unhealthy food. They like eating dumplings(饺子)very much.

1. How many tables are there in the dining hall?

__________________________________________________

2. What's Tony and Linda's favourite Chinese food?

___________________________________________________

3. There are _____ in the dining hall.

A. some tables and some students

B. some tables and some teachers

C. some tables and some pictures

D. some students and some teachers

4. 选择适当的词填在①处:

A. and          

B. but          

C. in                

D. so

5. 在②处的空白处用not like的适当形式填空:

_______________________________________

某大学2009届毕业生，求职时他热衷于天（天津）南（南京）海（上海）北（北京）等大城市，根本不愿去有很大需求但工作条件较差的小城镇或乡村。其结果是理想只能是幻想，很难实现就业。这位大学生难以实现就业，从哲学上看是因为

①没有从社会和个人的实际出发，使主观与客观相符合 

②没有坚持具体问题具体分析，一切以时间、地点和条件为转移

③没有很好的把理想与现实结合起来，处理好个人与社会的关系 

④没有充分发挥主观能动性

A．②③④

B．①②④

C．①②③

D．①③④

下颌智齿冠周炎沿下颌支内侧往后下可致

A．眶下间隙感染
B．面颊瘘
C．翼下颌间隙感染
D．下颌骨边缘性骨髓炎
E．下颌下间隙感染

以下哪一项指标为诊断ARDS的必要条件．（）

A.血氧饱和度

B.pH

C.动脉血氧分压

D.氧合指数

E.肺泡-动脉氧分压差

无需灌溉，主要依靠天然降雨，用于种植水生作物的耕地是指( )。

A．望天
B．旱地
C．菜地
D．水田