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【多选题】
防腐剂的使用原则A.
与食品不发生化学反应
B.
使用量少，对多种微生物起作用
C.
对人及动物植物等安全性高，无伤害或低伤害
D.
方便添加，使用简单，价格便宜
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皮皮学刷刷变学霸
举一反三
【单选题】A consumer's behavior was observed in three situations with dierent prices and incomes. In Situation 1, she chose a bundle that cost $1,600. In Situation 2, she chose a bundle that cost $2,500. In Sit...
A.
the bundle purchased in Situation 1 must cost less than $3,100 at Situation 3 pric
B.
the bundle purchased in Situation 3 must cost at least $3,100 at Situation 1 price
C.
the bundle purchased in Situation 1 can not cost less than $3,100 at Situation 3 price
D.
the bundle purchased in Situation 2 must cost at least $3,100 at Situation 1 pric
【单选题】Which of the following is NOT a man-overboard situation?
A.
“Immediate action” situation.
B.
“Quick action” situation.
C.
“Early action” situation.
D.
“Delayed action” situation.
【单选题】In what situation is the invitation card often used?
A.
Formal situation
B.
Informal situation
【单选题】Which of the following is NOT a man-overboard situation?
A.
“Immediate action” situation.
B.
“Quick action” situation.
C.
“Person missing” situation.
D.
“Delayed action” situation.
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