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【单选题】
在一个网络中,如果图形是连通且不含圈的,则这种图形称为( )。
A.
B.
线
C.
D.
最小部分树
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【简答题】I think that (1) the main points I (2) to tell you about...thank you for (3) me talk about the Storo System. So...now...I'd like to (4) you to me about the (5) that you have... to suggest any (6) qu...
【单选题】Where does the CO 2 in our blood come from?
A.
From the air we breathe in
B.
From bacteria inside our body
C.
From our body's cells
D.
From drinking cola (可乐)
【单选题】居住在云南丽江地区的纳西族妇女的披肩叫做( )。
A.
七星披肩
B.
羊皮披肩
C.
长带披肩
D.
白色披肩
【单选题】—_____? —She's our history teacher.
A.
Where is she from
B.
Where does the woman work
C.
Who is she
D.
How is the woman
【单选题】镗削极坐标平行孔系的主要技术要求是如何保证工件的( )和孔坐标的位置精度。
A.
孔尺寸精度
B.
孔粗糙度
C.
孔形状精度
D.
角度精度
【单选题】Miss Green didn't tell us _______ before she came to our school. [     ]
A.
where does she live
B.
where she lived
C.
where she lives
D.
which she lives in
【多选题】平行孔系主要保证()和()要求。
A.
平行度
B.
孔距精度
C.
表面粗糙度
D.
圆柱度
【单选题】居住在云南丽江地区的纳西族妇女的披肩叫做( )。
A.
白色披肩
B.
七星披肩
C.
羊皮披肩
D.
长带披肩
【判断题】A student can gain good diction by wide and careful reading and by consulting dictionaries. When in doubt about the meaning and use of a word, or about the differences between related words, he should...
A.
正确
B.
错误
【单选题】_____does he want to join our club?
A.
What
B.
How
C.
Why
D.
Where
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