无菌罐与清洗机相互间信号传送都是通过中控来完成的。

任务型阅读： 阅读下列短文，按要求完成下列各题。

    My name is Jack. I am twelve years old. I have many friends. Lots of them are my age. My best friend

is Ben. He is one year older than me. He lives near me. We go to the same (相同的) school. Ben and I are in

Class One. The others are in Class Two. Ben helps me with my maths homework because he is clever

at it. I help him with his English because I am good at it.

    Ben is 1.65 metres tall and I am 1.60 metres tall. Ben is fat because he doesn't like sports. We have black

hair and brown eyes, but Ben's hair is longer than mine. Every day, I, and, like sports, exercise. Every

evening we play computer games. Ben usually wins.

1. How old are lots of Jack's friends? (回答问题)

2. Which class is Jack in? (回答问题)

3. 根据短文内容填词：Jack and Ben often help                     with their lessons.

4. 将第一处画线部分译成汉语：

5. 将第二处画线部分组成正确的句子： 

南京失守后的第三日，蒋介石发表《告全国国民书》，称：“中国持久抗战，其最后决胜之中心，不但不在南京，抑且不在各大都市，而实寄于全国之乡村与广大强固之民心；我全国同胞能晓然于敌人之鲸吞无可幸免，父告其子，兄勉其弟，人人敌忾，步步设防，则四千万方里国土以内，到处皆可造成有形、无形之坚强堡垒，以制敌之死命。”这表明蒋介石已经认识到

①中国的抗日战争是一场持久抗战     ②必须以空间换时间来争取胜利

③民心团结的重要性                 ④ * * 党开辟的敌后战场是抗战主战场

A．①②③

B．①②④

C．①③④

D．②③

龋病治疗后，由于修复材料与牙体组织不密合，产生龋痛，为（）

A.急性龋

B.慢性龋

C.静止龋

D.继发龋

E.根面龋

印刷品表面有一层厚度2微米左右的光亮膜，一般是用（）方法加工。

A.覆膜

B.上光

C.烫印

D.压凹凸

简述同罐在进行收，付作业时的工艺操作标准。