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一种多基因遗传病的群体易患性平均值与阈值相距越近,说明群体易患性平均值( )
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一个正常男性核型中,具有随体的染色体是( )
染色质和染色体是（）
Complete the passage with the appropriate form of the collocations from the followingexpressions.1. to target a(n) audience 2.to launch a new campaign3. to sponsora sports event4. to project a(n) image 5. to endorse a(n) brand 6. to make a commercialSigning a celebrity and using their star status to 1) _______________ is one of the standard advertising techniques. Tag Heuer, the watchmaker which 2) ________ a number of ______________, once had Tiger Woods under contract. Audrey Tautou has 3) ________________ for Chanel No5, which has been shown around the world.But choosing the celebrity who will 4) __________ exactly the right _______ is not always so easy, as several companies like Tag Heuer have found out. What happens when a company is about to 5) _________ a new ____________ featuring a celebrity and it suddenly finds out that they are accused of a criminal offence or involved in a scandal? While there is no doubt that most celebrity endorsements do increase sales, more and more advertisers are turning to other less risky ways of 6) __________ the __________ that they want to reach.
关于配气机构,下列说法错误的是()。
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