【简答题】The required practice activities must follow the____ rules.
【判断题】输精管结扎者或精子缺乏症患者的精液中无精子,需用免疫学检验方法检验其精(液)斑。( )
【单选题】The listening activities must have a real , communicative ( ).
【单选题】The activities must require listeners to respond in some ( ) fashion.
【多选题】土壤微生物是土壤中最原始的活有机体,它们对植物生长的作用主要是()。
【单选题】水晶项链与铅玻璃项链最容易的区分方法是用()
【单选题】在土壤有机质分解转化及土壤团粒结构形成过程中,起主要作用的一类生物是()。
【判断题】输精管结扎者或精子缺乏症患者的精液中无精子,需用免疫学检验方法检验其精(液)斑。
【单选题】The activities must offer many environmental ( ) to meaning.
【单选题】The listening activities must use ( ) language normally used in everyday life.