X射线机根据用途分为：立式机、卧式机、车载式X射线机。
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The percentage of impurities in a specific fuel oil sample is determined by （）.
A. settling in a fuel tank
B. testing in a laboratory centrifuge
C. burning in a calorimeter
D. testing in a closed cu
以出让方式取得的土地使用权抵押，依法拍卖该房地产后，应缴纳土地使用权出让金后，抵押权人方可优先受偿。
A. 正确
B. 错误
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