【简答题】设A={x,y},B={1,2,3},写出:
【单选题】下列因素中与原发性肝癌发生关系最密切的是( )
【多选题】下列因素中与原发性肝癌发生关系最密切的是
【简答题】请简要说明Android中常用的数据存储方式有哪些?
【多选题】The coalification process is ______________.
A.
the progressive change from peat to lignite and then through the higher ranks of coal to anthracite
B.
a process that not only relies on geological time but also on temperature and pressure
C.
complicated and far-lasting
D.
companied by the increase of carbon content and decrease of moisture content in the as-formed coal
【简答题】养性之道,常欲________。《千金要方》