Usually we take the cooling effect of the air flown through the cylinder during the overlap period as（）
A . inevitable
B . harmful
C . helpful
D . unacceptable
相似题目
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Lube oil pumps taking suction from the sump of most small marine engines are usually （）.
A . of the diaphragm type
B . of the centrifugal type
C . of the positive displacement type
D . independently driven by electric motor
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We usually make a direct , shipment unless the customers require transshipment. 这句话翻译成中文是（）
A . 我们通常直接制造除非客户要求间接制造。
B . 我们通常采取直运， 除非客户要求转运。
C . 我们通常采取直运， 这样客户才要求转运。
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We’re i n the same boat means that we're in the same situation, and usually it's a good situation.
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Usually speaking, when should we get to the airport for the international flight?
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We are the only power willing to take the _____ in the long struggle to end the war.
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We should take a few minutes to _____ on the importance of the listening skill.
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Usually, we use the present tense (simple or continuous) to talk about the pictures.
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In the circuit, if we take c as the reference ground, and are:/ananas/latex/p/113069
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1.Where can we type the email address of the recipient if we don’t need them to take action?
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When we meet American friends for the first time, we usually do not ask them questions like().
A.How are you？
B.What do you think of the city？
C.Do you like the weather here？
D.Are you married？
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Take the deflation into consideration, which method of inventory valuation will usually produce the highest profit and the lowest closing inventory value.
A．FIFO method.
B．Weighted average cost method.
C．LIFO method.
D．None of the above.
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In the second paragraph "if we take two unrelated people at random from the population "means" if we ______."
A．pick up any two persons
B．choose two different persons
C．take out two persons who are relative
D．choose two persons with different intelligence from each other
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We need to rethink the way we consume energy. Take, for ________, our approach to transport.
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In the second paragraph "if we take two unrelated people at random from the population ..." means "if we ______."
A．pick up any two persons
B．choose two persons who are relatives
C．take out two different persons
D．choose two persons with different intelligence
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We often take a walk ______ this road to the riverside.
A、by
B、along
C、on
D、at
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We need one hundred more signatures before we take the______ to the governor.
A．plea
B．petition
C．patent
D．claim
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Many science reports discuss medical studies that test the effect of a new drug. Usually, a large number of people is divided into two groups. Each group takes a different substance. But no one knows which group is getting which substance. One group takes the medicine being tested. Another group takes what we call an inactive substance. Medical researchers call this substance a "placebo." The word "placebo" is Latin for "I shall please." Placebo pills(宽心丸)usually are made of sugar.
Using placebos to test drugs sometimes has a surprising result. Researchers say people taking the placebo often report improvements in their health. This is known as "the placebo effect"--pain that is eased or stopped by an inactive substance. In such testing, the drug must perform. better than the placebo to prove that it is effective.
Doctors have reported that the placebo effect can be used in treatment. For example, a doctor tells a patient that a new drug will stop the pain in his leg. The pill is only sugar. But the patient does not know that. He takes the pill and says his pain is gone.
Scientists are beginning to discover some physical reasons for this reaction in some people. They are learning that much of what people believe to be true comes from what the brain expects is going to happen. If the brain believes a drug will ease pain, the brain may begin physical changes in the body that can cause the expected effect. A recent examination of studies on drugs for depression found that placebos eased the depression about as well as the active drugs.
Other studies have explored the power of placebos. A study in Japan involved thirteen
people who reacted to the poison ivy (常青藤)plant. Poison-ivy causes red itchy sores(伤痕)on some people who touch it. Each person was rubbed on one arm with a harmless leaf, but was told it was poison ivy. Each person was then touched on the other arm with poison ivy, but was told it was a harmless leaf. All thirteen people developed a reaction on the arm where the harmless leaf touched their skin. Only two reacted to the poison ivy leaves.
Doctors and scientists worry that the use of placebos may not always be harmless. They say people can become victims of false doctors and others who use placebos to claim they can cure disease.
What do medical researchers usually use to make placebo pills？
A．Ivy leaves.
B．Harmless leaves.
C．Medicine being tested.
D．sugar.
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What does the student usually have to do before taking the advanced sketching course？
A．Write a book.
B．Attend an afternoon meeting.
C．Enroll in another class.
D．Go to the art museum.
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The longer the vacation we take, the bigger the stumbling blocks appear.翻译
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We take the liberty of writing to you （) establishing business relations.
A.hope
B.in hope
C.in the hope of
D.hoping
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Our baby is ill.We must take him_______the hospital.
A．to
B．for
C．away
D．at
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Complete each statement about movie genres. A ____ usually takes place in the future（）
A．documentary
B．science-fiction film
C．animated films
D．action films
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When we talk about a plan, we usually need to discuss the schedule, the main activities involved, etc. During discussion, we should consider each other’s suggestions and make proper responses. It’s OK
A．When/Where shall we meet？
B．Do we have to ...？
C．Do you mean we shoul
D．..？
D．It’s OK.
此题为多项选择题。
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24、分析问题的时候，我们通常先要确定程序生成的结果，即程序的输入。 When analyzing a problem, we usually start by identifying the results we want the program to produce; that is, the program's input.
