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To parallel an incoming machine to a running machine therefore it is necessary to ensure firstly that （）.
A . two frequencies must be brought into phase
B . the incoming machine accepts a small amount of load
C . the running machine must be unload
D . both voltages are equal
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This is the first draft of the book. Please feel perfectly free to（）on it.
A . cope
B . complain
C . comment
D . confirm
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There are two syllables in the word "photo". /əu/ occurs in both syllables， but the first one
is_____the second because it is stressed.
A . longer than
B . shorter than
C . as long as
D . as short as
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In order to understand a text well, it is absolutely necessary to understand every word in the first place.（）
A . 正确
B . 错误
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5.It is selfish to put your own needs in the first place.
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It is a good idea to write out your first speech like an essay and read it word for word to your listeners.
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——What's your teacher's name?——______ name is Ms Jones.
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2011.12 5.________ I am concerned, it is important to get a job first.
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All it can do is assure you that the person has looked at the first screen of the message.
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In Finland, it is customary for men to be greeted first.
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It is/was the first time（that)she has/had ever taken a strong stand against raising taxes．
It is/was the first time(that)she has/had ever taken a strong stand against raising taxes．
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It is implied in the first two paragraphs that
A．it was a mercy that Jeff Bezos took over the valueless Washington Post.
B．the decline of professional journalism has been around for a while.
C．the decline of English will have a huge impact on other languages.
D．professional journalism has been put at risk by the internet boom.
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When you open and drink an orange juice, it is essential that it_______ first.
A．shake
B．shaking
C．shaken
D．be shaken
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It’s Ms. Jones’ first visit to Guangzhou.（）
是
否
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America has a new national park. It is the Great Basin. It is the first national park in the western state of Nevada. The new park is in the eastern part of Nevada, close to the border(边界) with Utah. It is far from any city.
An American explorer John Charles Fremont travelled through the area in the early 1800's. He found the land shaped like a bowl. So he named it the Great Basin. It is a land of unusual beauty and sharp differences.
For example, you can climb a mountain covered with green forests, then cool yourself in a field of snow as you arrive at the top. Here and there, sharp rocks push out through the snow. Among the rocks you might see homes of the golden hawk (鹰), a bird that was once in danger of dying out.
You can camp in a campground on the edge of Lehman Caves. These caves are a group of large underground rooms made of limestone (石灰石). You can walk through them for about a kilometre. Before the park opened, the caves were the centre of interests for anyone travelling through this area.
The state of Nevada has wanted a national park for more than 60 years. There have always been the opposite ideas from people who believes that a park would harm(损害) mining and agriculture. The bill that set up the park, however, promises that mines will remain open, and that sheep and cows will continue to feed on the mountainsides.
Lehman Caves are______.
A．about a kilometre each
B．separated from each other
C．rooms made of limestone
D．what interest visitors most
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What does Ms. Jones hope to do？
A．Join on a trial basis only
B．Spread her payments over 24 months
C．Sign up for an extended period
D．Inspect the facilities in person
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Ms. Jones managed a few hours’ on board.
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It would seem to be a general truth______nothing is as straightforward as it at first seems．
A.that
B.when
C.because
D.if
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It is Ms. Jones first visit to China.
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Why did Ms. Jones send this email？
A．To request a free trial period
B．To inquire about the membership policy
C．To set up a fitness center subscription
D．To ask a question about the facilities
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Mary looks a bit nervous. After all, it is the first time she _____ a speech in public.
A has madeB madeC is makingD makes
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药物治疗只能缓解症状,不作为首选方案（Medical treatment can only relieve symptoms, so it is not the first choice)
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It is the first time that we _____ such an interesting trip since we ’ ve been in college.
A. took part in
B.take part in
C.will take part in
D.have taken part in
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The first step in the study of any language is observing and ____ precisely what happens when native speakers speak it.
A．setting off
B．setting about
C．setting up
D．setting down
