M2M这一概念来自英文()。
A.Machine too Machine
B.matter too matter
C.Machine to Machine
D.matter to matter
A.Machine too Machine
B.matter too matter
C.Machine to Machine
D.matter to matter
A.人工智能交互
B.数字信息交互
C.机器智能交互
D.网络平台交互
Supermarket's New Strategy
One supermarket in Tokyo has managed to solve the problems of shoplifting, mistakes by cashiers, and long lines of customers waiting at the cash registers. It is Japan's advanced computer technology that has come (51) with the answers.
Shoppers at an OK supermarket on the outskirts of the city now push a cart (52) a plastic card chained to it and buy from glass cases where the goods are on display. The plastic card has a magnetic number imprinted on it. Each customer carries his or her own card, which is (53) at the exit. While shopping, the customer pushes the card into a slot beside whichever items are wanted and pushes a button or two. The glass covered vending machines are connected to a computer that (54) the price of every item in the store. Prices of every purchase are added up automatically. (55) she has finished shopping, the customer hands her card to a cashier who (56) it into the register. A second later the (57) pops out.
Shoplifting is physically impossible. Once you touch a commodity the computer remembers it no matter how you hide it or (58) you eat it on the spot.
A cashier at the OK supermarket is now able to work 15 times faster than her (59) at a conventional supermarket. Only two cashiers, (60) , are required at the store, which (61) 2,500 separate items. One man is enough to keep the vending machine filled, because whenever the stock for a certain commodity is (62) to run out, a red lamp in the computer-room (63) him.
But there are disadvantages too: a customer cannot (64) his or her mind about a purchase. Once touched, the item cannot be put back. The customer must (65) a cashier with it first and get a refund later. There are also no fresh vegetables or fish on sale—everything is prepackaged.
(51)
A.together
B.up
C.along
D.on
The sport, originated early in the 20th century in France, was prevalent in the 1920s, but became prominent in the 1950s (the British Cyclo-Cross Association was founded in 1954). An original European sport, cyclo-cross became popular throughout Western Europe and in the United States. World championships were initiated in 1925; by 1950 these were recognized by the Union Cyclist International(International Cyclists' Union). After 1967 amateur and professional classes were officially separated in competition.
The 24-kilometer cyclo-cross course, often involving taps, is usually completed in 60 minutes. A course typically includes obstacles such as ditches, mud, fallen trees, streams, flight of stairs, fences, and gates; artificial hurdles are added to insufficiently challenging natural courses. Cyclo-cross races are usually held from September to March, adding winter weather hazards to the challenge.
There is a massed start with the field assembling not more than two abreast. Helpers are often stationed around the course with spare bicycles in case the original machine encounters mechanical difficulties or becomes too weighted down by mud picked up to the course.
What does the word "dismount" in Paragraph * One mean?
A.Give up.
B.Give in.
C.Get our.
D.Get off.
A.It’s too late
B.It doesn’t matter
C.Oh, yes
D.I think so, too
A.It doesn't matter.
B.Not too bad.
C.I don't feel well.
D.That's all right.
No wooded landscape we see today has been forest for all time. Plants have minimum requirements of temperature and moisture and, in ages past, virtually every part of Earth's surface has at some time been either too dry or too cold for plants to survive. However, as soon as climatic conditions change in favor of plant life, a fascinating sequence of changes occurs, called a primary succession.
First to colonize the barren land are the lowly lichens, surviving on bare rock. Slowly, the acids produced by these organisms crack the rock surface, plant debris accumulates, and mosses establish a shallow root-hold. Ferns may follow and, with short grasses and shrubs, gradually form. a covering of plant life. Roots probe even deeper into the developing soil and eventually large shrubs give way to the first trees. These grow rapidly, cutting off sunlight from the smaller plants, and soon establish complete domination-closing their ranks and forming a climax community which may endure for thousands of years.
Yet even this community is not everlasting. Fire may destroy it outright and settlers may cut it down to gain land for pasture or cultivation. If the land is then abandoned, a secondary succession will take over, developing much faster on the more hospitable soil. Shrubs and trees are among the early invaders, their seeds carried by the wind, by birds and lodged in the coats of mammals.
For as long as it stands and thrives, the forest is a vast machine, storing energy and many elements essential for life.
What does the forest strike mankind as permanent?
A.The trees are in community.
B.The forest is renewed each season.
C.Man's life is short in comparison.
D.It is an essential part our lives.