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This helps airlines keep the cooling costs lower within the cabin,but also serves to proleelparts of the plane that are more easily-affected to heat damage.Hansman explains thal the nosecone)of the plane in particular needs the extra temperature advanlage,becuuse it's made of compositematerial (usually plastic).This section can't be made out of metal because it houses the plane's rudurand needs to be transparent so the device can operate effectively.Additionally,a study published in Human-Wildlife Interactions found thut the puin jobdoemkedifference to birds,"this finding suggests that a whiter fuselage (would stand out more uguinst thesky from the perspective of birds'visual system."According to the NY Daily News,approximalely 600million dollars worth of damage is caused to planes by birds each year.Planes are white so that they donroast or collide with birds.24.What can we infer from the first paragraph?A.People usually think actively.B.People usually think negatively.C.People tend to think twice before taking action.D.People tend to take common things for granted.5.According to John Hansman,why are aircraft paintedA.Because of the safety.B.Because of the sizeBecause of the weight.Because of the weather.26.Why is the nosecone made of plastic according to the passage?A.It can't bear heavy weight.B.It houses the plane's radar which works with metal effectivelyC.Metal will somewhat affect the operating of radar.D.Heat damage hardly affects aircraft.27.What might be the best title of this passage?-A Why is the color white favored by aircraft?B.Why are the streets in America painted white?C.Effective ways to reduce collision of birds.D.Color choices of painting.CHundreds of millions have rolled up their sleeves for the COVID-19 vaccine.but why haven't theyrolled up their pants legs instead?Why do we get most shots in our arms?What's the seience behind whwe get most vaccines in our arm and does location matter?Muscles make an excellent vaccine administration site because muscle tissue contains importantimmune cells.These immune cells recognize the antigen (a tiny piece of a vins or bacteriaintroduced by the vaccine that stimulates an immune response.In the case of the COVID-19 vaccine,the immune cells in the muscle tissue pick up these antigenand present them to the lymph nodes )Injecting the vaceine into muscle tissue keeps the vaecinelocalized,allowing immune cells to sound the alarm to other immune cells and get to work.Oucevaccine is recognized by the imimne cells in the muscle,theso cell cary the antigen to lmph eahovewhich transpor the antigen-carrying immune cells into the lymph nodek场Lymph ndes,key componen f our immune ystem.contain imnune cel thatthe antigens in vaccines and start the immune prucess of creating antibliea.and plGroups of lymph nodesare catentoacniiteFur intethreevaccines are injected in the dehtoid (ecause is cle lymphaeape tudlarmpit(腋下)，美请：第4州其多妈)
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