【简答题】决定薄层色谱分离效率的因素主要有( )的性质、( )的吸附活性和( )的极性;强极性试样应选择活性( )的吸附剂,弱极性试样应选择活性( )的吸附剂。
【单选题】The four Cs strategy includes the following aspects except .
【简答题】Context of communication can be grouped into four aspects: ______________setting, ____________, _________, ___________________.
【多选题】Four aspects of quality are particularly important in software.?
【多选题】Four major aspects account for the changes of cultures, they are: __________.
C.
technological invention
【多选题】core functions of spinning include four aspects.
【单选题】神经过程为强、平衡、灵活的气质类型,其高级活动神经活动类型是( )。
【单选题】The four aspects greatly the cross-cultural business negotiation