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【多选题】
下面有关公共场所传染病的介绍有误的有A.
传染病是由各种病原体所引起的一组具有传染性的疾病
B.
传染病在公共场所中流行必须有病原体存在还必须有传染源传播途径两个环节
C.
乙肝属于经呼吸道传播的传染病，伤寒属于经消化道传播的传染病
D.
消毒后的物品必须是完全无菌的。
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举一反三
【单选题】Which of the following statements is NOT tree of 'free flight'?
A.
Commercial aircraft is guided by GPS.
B.
Civilian aircraft are free to move over all territories.
C.
Cargo carriers no longer collide with one another.
D.
Passenger flights are safe to fly with military aircrafts.
【简答题】根据汉语意思完成句子。 1. Gu Changwei is one of the top_________(摄影师)in China. 2. In your spare time, what do you like for__________(娱乐)besides watching TV? 3. Look at these________(照片)!I took them in Paris. 4. ...
【简答题】传统的饮食器具以__________________为主。
【单选题】Which of the following statements is NOT true of 'free flight'?
A.
Commercial aircraft is guided by GPS.
B.
Civilian aircraft are free to move over all territories.
C.
Cargo carders no longer collide with one another.
D.
Passenger flights are safe to fly with military aircrafts.
【单选题】According to the methods we learned in Week 6, which one of the following is a phrase?
A.
Fěnbǐ‘chalk’.
B.
Jiǔguǐ ‘an alcoholic’.
C.
Lǐxiǎng ‘ideal’.
D.
Jǔshǒu ‘raises to hand’.
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