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全国牙防组口腔健康调查技术组专家对某省调查人员进行了调查前培训，纠正了些容易影响调查质量的不足之处

根据WHO龋病诊断标准，下面有一项不能诊断为龋（）

A.病损底部发软

B.牙釉质有潜在的损害

C.牙釉质上硬的白斑

D.窝沟壁或底软化

E.着色区软化凹陷

答案

参考答案：C

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HELP PROTECT AUSTRALIA
Food, plant material and animal products from overseas — including many common souvenirs(纪念品) — could introduce some of the world's most serious pests (害虫) and diseases into Australia. Failing to declare quarantine items (要检疫的物件) on arrival could destroy our agriculture, tourism industries and natural environment.
Declare (申报)Or Be on Your Guard
You must declare for inspection (检查) all food, plant material and animal products to check that they are free of pests and diseases.
Every piece of luggage is now screened or. x-rayed on arrival in Australia. If you fail to declare or get rid of any quarantine items, or make a false declaration:：
☆you will get caught;
☆you could be accused (指控) and fined more than A$60,000 and risk up to 10 years imprisonment(监禁);
☆you could be fined over A$200 on the spot.
If you're not sure about items you are carrying,　ask a quarantine officer.
 
小题1:Why are you asked to declare quarantine items on arrival?
A．They could contain some drugs inside.
B．They can’t be carried into Australia free of charge.
C．They are often the cause of various crimes.
D．They may carry pests or diseases into Australia.
小题2:Which of the following items need you NOT declare if you have them in your  luggage?
A．A bottle of honey.B．Dried flowers.
C．A hair-drier. D．Wooden chopsticks.
小题3:If you don’t declare quarantine items, ______.
A．you can probably get away with them
B．you will be discovered and punished
C．you can turn to the customs officers for help
D．you can give them away to a quarantine officer
小题4: Which of the following information can also be included in this notice?
A．Inspection equipment.B．Size of your luggage.
C．Examples of quarantine items.D．Souvenirs you can buy here
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选择题

小玉喜欢迎接挑战，每一次考试，她都有条不紊地复习，对自己充满信心。面对学习压力我们应该认识到

A．适度的学习压力只会带来消极的影响  

B．适度的学习压力会提高我们的学习能力，对身心健康造成不利的影响  

C．适度的学习压力可以激发我们的干劲和潜能，使我们表现得更积极  

D．适度的学习压力会影响学习效率和已有水平的正常发挥
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