题目内容
Do you know that a worker ant has two (胃)?
stomachs
练习册系列答案
相关题目
___ is the most useful invention?
A.Do you think which of these |
B.Which of these you know |
C.Which of these do you know |
D.You know which of these |
Do you know the stages every inventor must ________ before they can have their invention________ .
A.go through; approve |
B.go through; approved |
C.get through; approval |
D.look through; approved |