Hans has 27 dollars, which he decides to spend on x and y. Commodity x costs $16 per unit and commodity y costs $10 per unit. He has the utility function U （x, y）=5×2 + 2y2 and he can purchase fr
A. Hans will choose only x
B. Hans will choose only y
C. Hans will chose some of each commodity, but more y than x
D. Hans will choose some of each commodity, but more x than y
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The demand curve shows（）
A. how much people would like to pay at the reserve prices
B. how much firms would like to sell at each prices
C. how much market would like to trade
Which of the following speech is not a ceremonial speech（）
An introduction
B. A commencement address
C. A commemorative speech
D. A eulogy
How to adjust your speech if you receive negative audience responses（）
Adding another vivid example
B. Starting to raise your voice drastically
C. Speaking very fast to speed up
D. Criticize the audience for not listening
Which one is not the proper way of delivery on the stage（）
A. Stand straight and face the audience
B. Speak loudly enough so that audience at the back seat can hear you clearly
C. Point your finger at the audience
D. Make steady and firm eye contact with audience
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