The word ‘this” in the passage refers to _____A.WaterB.The circulation systemC.Repairing the pipingD.Blocking the flow of water
The word “thrust” in the passage is closest in meaning toA.CarriedB.RepairedC.PushedD.Removed
which word refers to the part of a nuclear reactor in which the nuclear reaction takes place?A.VesselB.CoreC.Circulation systemD.Control rods
What is the most likely reason why many Americans are still afraid of nuclear island?A.They have heard about many accidents like the one at Three Mile Island.B.They were at Three Mile IslandC.They believe that a situation like Three Mile Island could happen againD.Nuclear power plants are always dangerous.
Which is the best place for the following sentence?“ Even so, this disaster stayed in the minds of many Americans.”A.[1]B.[2]C.[3]D.[4]
What is the topic of the passage?A.Types of stars and how to observe them.B.The differences between binary and variable starsC.Types of telescopesD.The color and temperature of stars
Which of the following is true of variable stars?A.They vary in brightnessB.They rotate around each other.C.They vary in color.D.The size of the telescope must vary in order to observe them.
Why does the author write that “stellar astronomy is possible for everyone”?A.To emphasize that it is easy to become an astronomerB.To encourage people to try observing starsC.To show that most people know a lot about starsD.To explain why astronomy is popular
The word “parameters” in paragraph 1 is closest in meaning toA.MeasurementsB.LawsC.CategoriesD.Numbers
The word “ rudimentary” in paragraph 4 is closest in meaning toA.AdvancedB.FormalC.BasicD.Important
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