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【判断题】
电离平衡是动态平衡A.
正确
B.
错误
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举一反三
【简答题】请简述四季豆食物中毒的原因及预防措施。
【简答题】Give synonyms of the following words. 1. cross (adj.) 2. dejected 3. furrowed 4. gruff 5. hamlet 6. henceforth 7. irritation 8. knoll 9. primeval 10. to commence
【单选题】某些连锁药店将个别药品项目以特别低的价格出售,以吸引更多的消费者购买其他以正常价格出售的药品。这种定价策略称为( )
A.
招徕定价
B.
特殊定价
C.
差异定价
D.
声望定价
【简答题】__ 1. pass the buck__2. get to the bottom of the problem__3. the last straw__4. slip my mind__5. ripped off__6. talk at cross purposes__7. go the extra mile
【单选题】关于预防常见化学性食物中毒的措施,不正确的做法是( )。
A.
为有效去除蔬菜水果农药残留，用水冲洗即可
B.
生豆浆应煮沸
C.
四季豆烫煮且炒透
D.
腌制肉制品的亚硝酸盐按要求限量
【简答题】关系演算分为元组关系演算和（ ）
【多选题】Each given topic sentence is followed by several additional sentences. Cross off the sentences that are off-topic. TS: The development of watches is an interesting story.
A.
1) A watch is a small timepiece designed to be carried by a person.
B.
2) The first watches were called pocket watches.
C.
3) The first watches were very large and heavy.
D.
4) It is believed that the first pocket watch was made in Germany in about 1510.
E.
5) The earliest known British clock was put up in about 1386.
F.
6) During the sixteenth century watchmaking spread from Germany to England, France and Switzerland.
G.
7) For a long time English clocks were the most famous in the world.
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