【单选题】As the saying goes, “ The______ something is, the_____ it is .” So keep it and you will make a lot of money from it in about 100 years.
A.
more rare; more worthy
C.
more scarce; more worth
【判断题】蒸馏操作中加热液体时,沸石可以在液体接近沸腾时加入( )。
【简答题】n.概念,观念,意图,想法,(怪)念头______
【单选题】柱塞泵的转轴每转一转,每个密封工作腔吸油、压油各( )次。
【单选题】右心衰竭时所引起的组织水肿,其主要原因是
【单选题】右心衰竭时所引起的组织水肿,其主要原因是