【单选题】一切会计凭证,只有( )后,才能作为登记账簿的依据
【单选题】无论是臂内倒位还是臂间倒位,杂合子在形成配子时,一旦在环内发生交换就无法得到正常的配子,因此,倒位的一个重要的遗传学效应就是可以抑制或大大地降低倒位环内基因的________?
【多选题】导游人员带领旅游团开展旅游活动应遵循的原则有()
【单选题】一切会计凭证,只有( )后,才能作为登记账簿的依据。(中)
【简答题】I don't like western food because I think it is ____ .(taste)
【单选题】In one of our textbook readings, a student tells a story of when a foreign teacher asked him a question and his answer was, "Sorry, I don't know." Why did the foreign teacher not like that answer?
A.
Because the answer was incorrect and the teacher wanted the correct answer.
B.
Because the student actually knew the correct answer but didn't want to share which caused the teacher to get angry.
C.
Because western teachers focus on the learning process and would rather have a student say a wrong answer than say they don't know.
【单选题】无论是臂内倒位还是臂间倒位,杂合子在形成配子时,一旦在环内发生交换就无法得到正常的配子,因此,倒位的一个重要的遗传学效应就是可以抑制或大大地降低倒位环内基因的?
【多选题】导游人员带领旅游团开展旅游活动应遵循的原则有()。