It was about 600 years ago （） the first clockwith a face and an hour hand was made.
It was about 600 years ago （） the first clockwith a face and an hour hand was made.
相关考题：
About 300 years ago, many people __________.A． wanted to leave LondonB． had big houses in LondonC． became policemenD． came to live in London
The Chinese people first _______ paper about 2 000 years ago. A.discoveredB.foundC.experiencedD.invented
It was about 600 years ago( )the first clock with a face and an hour hand was made. A. WhichB. WhenC. thatD. Where
［A］ For example, the Moche lords of Sipán in coastal Peru were buried in about AD 400 in fine cotton dress and with exquisite ornaments of bead, gold, and silver. Few burials rival their lavish sepulchres. Being able to trace the development of such rituals over thousands of years has added to our understanding of the development of human intellect and spirit.［B］ By 40,000 years ago people could be found hunting and gathering food across most of the regions of Africa. Populations in different regions employed various technological developments in adapting to their different environments and climates.［C］ Archaeological studies have also provided much information about the people who first arrived in the Americas over 12,000 years ago.［D］ The first fossil records of vascular plants—that is, land plants with tissue that carries food—appeared in the Silurian period. They were simple plants that had not developed separate stems and leaves.［E］ Laetoli even reveals footprints of humans from 3.6 million years ago. Some sites also contain evidence of the earliest use of simple tools. Archaeologists have also recorded how primitive forms of humans spread out of Africa into Asia about 1.8 million years ago, then into Europe about 900,000 years ago.［F］ One research project involves the study of garbage in present-day cities across the United States. This garbage is the modern equivalent of the remains found in the archaeological record. In the future, archaeologists will continue to move into new realms of study.［G］ Other sites that represent great human achievement are as varied as the cliff dwellings of the ancient Anasazi (a group of early Native Americans of North America) at Mesa Verde, Colorado; the Inca city of Machu Picchu high in the Andes Mountains of Peru; and the mysterious, massive stone portrait heads of remote Easter Island in the Pacific.
What is known about the influenza virus?A. It was first found in a group of very old birds.B. All the different strains can be found in wild birds.C. It existed over 100 million years ago.D. It can survive in many different places.
I first heard this story _____ from a girl I had met in New York's Greenwich Village.A. since a few yearsB. a few years beforeC. for a few yearsD. a few years ago
There used to be an old city here, which was ()under the river about 2000 years ago.A、insultedB、insulatedC、buriedD、interrupted
About 2000 years ago, the chinese paper was made () the hair-like parts of certain plants.A、fromB、ofC、intoD、out of
When talking about their brotherhood ___ they had ten years ago, he became very sad. A、whichB、whenC、whomD、who
Electricity ________ by the Greeks a good many years ago. A.was first foundB.was first discoveredC.has first been discoveredD.was seen first
I first met Lisa three years ago when we ________ at a radio station together.A.have worked B.had been working C.were working D.had worked
What is learned about Kilmer Health Care Center?A. It is near a hospital.B. It opened four years ago.C. It is run with state funds.D. It has a highly-trained staff
Great Wall, first built 2000 years ago, is a____ miracle.A.cautiousB.marvelousC.numerousD.serious
Electricity （） by the Greeks a good many years ago.Awas first foundBwas first discoveredChas first been discoveredDwas seen first
单选题When was paper first created?AAbout 2000 years ago.BIn the 19th century.CAbout 1000 years ago.DIn the 11th century.
单选题Which of the following is TRUE about the book?AIt is the first world encyclopedic dictionaryBIt can help deaf people know about the world more easilyCIt took them sixteen years to finish the bookDIt includes medicine and art about the life of deaf people
单选题Electricity （） by the Greeks a good many years ago.Awas first foundBwas first discoveredChas first been discoveredDwas seen first
单选题It can be learned that Methuselah _____.Ais an ancient tree about 2000 years oldBis grown from a seed about 2000 years oldChad already become extinct 2000 years agoDhas been the food source since 2000 years ago
问答题Practice 3 On July 10th the company will hold its first worldwide video conference(电视会议). All twenty facilities will be linked by a satellite broadcasting system so that employees can see and speak with each other. Mr. Black will begin the conference by telling us about our goals for the next five years. Next, each manager will speak about current challenges. The last hour will be devoted to questions from all locations. If it proves successful, we hope to schedule worldwide video conferences annually.
单选题According to this passage, which of the following statements is TRUE?ACompany workers started to dress down about twenty years ago.BDress-down has become an everyday phenomenon since the early 1990s.C“Dress-down Friday” was first given as a favor from employers.DMany workers want to wear casual clothes to impress people.
单选题When was the first story about the monster told?A200 years ago.BOver 500 years ago.CIn 1933.DIn 1960.
单选题Which of the following sentence contain a noun (名词) used as an attribute（定语）?AWe can’t but face the reality.BWe could hardly see any fresh vegetables in winter on market several years ago.CThere are only two women assistants in that shoe shop.DThese young people know little about how to choose good books to read.
单选题The first treatment given to a person overcome by benzene vapor should be to（）.Aremove them to fresh airBflush their face with water for about 5 minutesCstand them up and walk them aroundDremove their clothing and wrap them in blankets