【多选题】下列选项中,至少应于每年年末进行减值测试的有( )。
【单选题】Corn is planted ______.
【多选题】The seating style of traditional rows ________.
A.
encourages discussion and participation
B.
enables the speaker to supervise the presentation easily
C.
is suitable for the audience of a big size
D.
engages audience in back rows the same way it does to audience along the middle of the room
E.
allows audience members to interact closely with each other
【单选题】工业企业费用分类的标准很多,其中最基本的分类是 ( )
【判断题】工业设备的保温材料,一般都是取热导率(导热系数)较小的材料。
【单选题】"Prices are down 40 percent since Christams", he ______.
【单选题】下列选项中,能填入空白处3的代码是( )
【简答题】钢的淬透性主要取决于( ),马氏体的硬度主要取决于( ),钢的表层淬火,只能改变表层的( ),而化学热处理既能改变表层的( ),又能改变表层的( )。
【简答题】A.pages B.covers C.lines D.rows