以下解冻方法错误的是（）。 A.在5℃或更低的温度条件下进行解冻 B.将需解冻的食品

企业的质量方针是每个技术人员（一般工人除外）必须认真贯彻的质量准则。

阅读理解。

    Jack is a twenty-year-old young man. Two years ago, when he finished middle school, he found work

in a shop. Usually he works until ten o'clock in the evening. He is very tired when he gets home. After a

quick supper he goes to bed and soon falls asleep. His grandma who lives downstairs is pleased with him. 　　

   One day, on his way home, he met his friend Mary. They were both happy. He asked the girl to his house,

and she agreed happily. He bought some fruit and drinks for her. And they talked about their school, teachers,

classmates and their future. They talked for a long time. 　　

   "Have a look at your watch, please," said the girl. "What time is it now?" 　　

   "Sorry, something is wrong with my watch," said Jack. "Where's yours?" 　　

   "I left it at home." 　　

   Jack thought for a moment and found a way. He began to stamp his foot on the floor, "Bang! Bang! Bang!" 　　

   The sound woke his grandma up. The old woman shouted downstairs, "It's twelve o'clock in the night,

Jack. Why are you still jumping upstairs?"

1. The old woman is satisfied with Jack because ______. [ ]

A. he's her grandson

B. he's clever 　

C. he can keep quiet

D. he gets home on time

2. The word "stamp" in the story means ______ in Chinese.[ ]

A. 盖印

B. 跺

C. 贴邮票

D. 承认

3. Jack stamped his foot on the floor in order to (为了) ______. [ ]

A. wake his grandma up

B. make his grandma angry 　

C. let his grandma tell him the time

D. let his grandma buy him a watch

国外发明的抗甲流特效药“特敏福”的主要原料是中药八角茴香，这使中药的疗效再次受到重视。但中国在全球中草药每年约300亿美元的贸易中仅占3%。以青蒿为例，是经中国几代医师研制成功的治疗疟疾的特效药，最后却被一家外国公司抢先登记了，日本生产的救心丸也是在中国名药六神丸的基础上开发出来的，单这两项就使中国每年损失3至4亿美元。根据材料回答1~2题。

1、根据工业区位理论和以上材料分析，我国最具国际竞争力的中药厂应属于 [ ]

A、动力导向型工业

B、劳动力导向型工业

C、技术导向型工业

D、原料导向型工业

2、野生动植物保护工作的开展和禁止野生动植物非法进出口贸易力度的加强，对我国中草药制造业的直接影响是[ ]

A、导致我国中草药制造业倒闭

B、使某些中草药制造业的原料更加紧缺

C、有利于我国中草药制造业的引资

D、有利于我国中草药制造业为太空医学服务

已知在酸性溶液中，下列物质氧化KI时，自身发生如下变化：Fe³⁺→Fe²⁺；MnO₄^-→Mn²⁺；Cl₂→2Cl^-；HNO₃→NO．如果分别用等物质的量的这些物质氧化足量的KI，得到I₂最多的是（　　）

A．Fe³⁺

B．MnO₄^-

C．Cl₂

D．HNO₃

下列哪项不是合理的腹部CT血管造影技术

A．通常用于腹主动脉及其大分支的血管成像
B．检查前不宜口服对比剂
C．对比剂总量80～100ml
D．延迟扫描时间通常为20～30秒
E．层厚1～2mm，间隔1～2mm