【单选题】Do you often help your mother __ at home ?
【单选题】Do you often help your mother _____ food? [ ]
【单选题】Is the attic likely to be a room at the (a) top, or (b) the bottom of the house?
B.
(b) the bottom of the house
【单选题】__________ is to implement one method in the structure chart at a time from the top to the bottom.
C.
Bottom-up and top-down approach
【单选题】从语音的社会性质的角度划分出来的最小的语音单位是 ( )
【单选题】从语音的社会性质的角度划分出来的最小语音单位是
【多选题】公平正义是中国特色社会主义的内在要求,实现社会公平正义()
【单选题】In an I–beam spar, the top and bottom of the I–beam are called the ______ and the vertical section is called the ______.
【简答题】How much difference of margin between the top and the bottom?