People pull crackers after having Christmas dinner.

First Choice Cracker company needs to increase the price of crackers by 5%, based on a substantial increase in input costs such as flour. The price elasticity of demand for crackers is 0.4. The company can expect the consumption of cereal to: A: decrease by 1.5%. B: increase by 1.5%. C: decrease by 2.0%. D: increase by 2.0%.

COMPREHENSION QUESTION 2.5.1What did the study conducted by Dr. Repacholi and Dr. Gopnik using crackers and broccoli find that 18 month old babies knew that 14 month old babies did not? A: Everyone should eat broccoli because it is healthier than crackers B: One's own preference might differ from the preferences of others C: Everyone prefers to eat crackers over broccoli D: One should always act on one’s own preferences as opposed to the preferences of others

_____ is an important part on the Spring Festival. A: eating jiaozi B: boat racing C: playing games D: firing crackers (鞭炮)

What do people do on New Year's Day? A: have a party B: enjoy delicious food C: see fire crackers D: making new resolutions

从目前的情况看，对所有的计算机系统来说，（）威胁是最为严重的巨大的损害。 A: 没有充分训练或粗心的用户 B: 分包商和承包商 C: Hackers和Crackers D: 心怀不满的雇员

从目前的情况看，对所有的计算机系统来说，以下威胁是最为严重的，可能造成巨大的损害（） A: 没有充分训练或粗心的用户 B: 分包商和承包商 C: Hackers和Crackers D: 心怀不满的雇员