（）are the three different coatings which can protect metal from corrosion.A、Cement wash, bitumen and paintB、Metal primers, undercoats and topcoatsC、Varnishes, heat-resistant paints and anti-fouling paintsD、Cement wash, primer and undercoat
（）are the three different coatings which can protect metal from corrosion.
- A、Cement wash, bitumen and paint
- B、Metal primers, undercoats and topcoats
- C、Varnishes, heat-resistant paints and anti-fouling paints
- D、Cement wash, primer and undercoat
相关考题：
Ask three people to look out the same window at a busy street corner and tell you what they see. Chances are you will receive three different answers. Each person sees the same scene, but each perceives something different about it.Perceiving goes on in our minds. Of the three people who look out the window, one may say that he sees a policeman giving a motorist a ticket. Another may say that he sees a rush hour traffic jam at the intersection. The third may tell you that he sees a woman trying to cross the street with four children in tow. For perception is the mind’s interpretation of what the senses in this case our eyes tell us.Many psychologists (心理学家) today are working to try to determine just how a person experiences or perceives the world around him. Using a scientific approach, these psychologists set up experiments in which they can control all of the factors. By measuring and charting the results of many experiments, they are trying to find out what makes different people perceive totally different things about the same scene.(1)Which of the following is TRUE?A、We have chances to receive three different answers from three people.B、It is likely that we will receive three different answers from three people.C、It is proved that we will receive three different answers from three people.D、It is impossible that we will receive three different answers from three people.(2)Seeing and perceiving are ________.A、the same actionB、two separate actionsC、two actions carried on entirely by the eyesD、several actions that take place at different times(3)Perceiving is an action that takes place ________.A、in our eyesB、only when we are thinking hardC、only under the direction of a psychologistD、in every person's mind(4)Psychologists study perception by _______.A、setting up many experimentsB、asking each other what they seeC、looking out of windowsD、studying people's eyes(5)The best title for this selection is _______.A、How We SeeB、Learning about Our Minds through ScienceC、Color and PeopleD、How to Become a Psychologist
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多选题What are three different integrated UTM components available on the branch SRX Series devices?（） (Choose three.)Aantivirus (full AV, express AV)Bantivirus (desktop AV)CWeb filteringDantispamEfirewall user authentication
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