【简答题】茶树的主根具有很强的_________性、_________性和_________性,可使根伸入土壤深层。
【判断题】戊烯二醛反应为尼可刹米和异烟肼的鉴别反应。()
【判断题】戊烯二醛反应为尼可刹米和异烟肼的鉴别反应。
【单选题】Which of the following sentences is grammatically INCORRECT?
A.
Every girl and every boy is asked to be at the school gate before 7:00.
B.
Not only vegetables but also meat is important for our health.
C.
The departed is a well-known novelist.
D.
The young couple is quarrelling with each other.
【判断题】为了安装方便,CPU插座上有一缺口标记,安装CPU时,需将CPU和CPU插座中的缺口标记对齐才能将CPU压入插座中。
【单选题】同样的速度在平地行走,大腿截肢者要比正常人多消耗( )的能量。
【判断题】邮轮行李标签可通过在线登记时自行打印、也可从旅行社或代理商处获得、也可通过码头行李托运工作人员处索取。