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【单选题】
A We have entered a new age of embedded, intuitive computing in which our homes, cars, stores, farms, and factories have the ability to think, sense, understand, and respond to our needs. It’s not science f iction, but the dawn of a new era. Most people might not realize it yet, but we are already feeling the impact of what’s known as the Third Wave of computing. In small but signif icant ways it is helping us live safer, healthier, and more secure and comfortable lives. Ten years ago Mercedes didn’t need a home heating strategy. Yet in 2015 the automaker’s vehicles offer integration with Nest, the high-end smart thermostat: a Mercedes owner can set the room temperature from his car. There is an API that allows Netf lix to dynamically change a room’s illumination based on the color palette of a movie scene; and a new French tennis racket allows players to track and analyze ball speed, spin and impact to improve their game. If you drive a 2014 Mercedes Benz, for example, an “intelligent” system endeavors to keep you from hitting a pedestrian. A farmer in Nigeria relies on weather sensors that communicate with his mobile device. Forgot your medication? A new pill bottle from Adhere Tech reminds you via text or automated phone messages that it is time to take a pill. 2. How can smart tennis racket help players get better performance?
A.
By collecting information through Bluetooth technology.
B.
By changing the ball speed, spin and ball impact dynamically.
C.
By evaluating the power of the ball on the racket strings, the rate at which the ball moves, and how fast the ball rotates.
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【单选题】假设价格水平固定,而且经济中存在超额生产能力,货币供给增加将()。
A.
降低利率,这将使投资减少。
B.
降低利率,这将使投资增加。
C.
对利率和投资都没有影响。
D.
提高利率,这将使投资减少。
【简答题】食品防腐剂的作用机理?
【单选题】How long is Joe' s internship?
A.
A year.
B.
A year and a half.
C.
Half a year.
【简答题】设有如下语句,请用相应的谓词公式分别把他们表示出来: (1) 有的人喜欢梅花,有的人喜欢菊花,有的人既喜欢梅花又喜欢菊花 。 (2) 不是每个计算机系的学生都喜欢在计算机上编程序。 (3) 凡是喜欢编程序的人都喜欢计算机。
【简答题】简述防腐剂的作用机理。
【单选题】假设价格水平固定,而且经济中存在超额生产能力,那么货币供给增加将:
A.
降低利率,这将使投资减少
B.
降低利率,这将使投资增加
C.
对利率和投资都没有影响
D.
提高利率,这将使投资减少。
【单选题】对于语句:f=(3.0,4.0,5.0),(2.0,1.0,0.0);的判断中, 是正确的。
A.
语法错误
B.
f=5.0
C.
f为0.0
D.
f为2.0
【简答题】设有如下语句,请用相应的谓词公式分别把他们表示出来。 (1)不是每个计算机系的学生都喜欢在计算机上编程序。 (2)凡是喜欢编程序的人都喜欢计算机。
【单选题】对于语句f=(3.0,4.0,5.0),(2.0,1.0,0.0);的判断中( )是正确的
A.
语法错误
B.
f为5.0
C.
f为0.0
D.
f为2.0
【简答题】简述防腐剂的作用机理?
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