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【单选题】
组成平面构成的三要素是( )。A.
节点
B.
点、线、面
C.
像素
D.
路径
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【单选题】听力原文：W: One of her grades was 90, and another was 50. M: Her work is very uneven. What was the girl's low grade?
A.
140.
B.
50.
C.
90.
【单选题】That she hadn’t kept her ____ on her work resulted in the failure.
A.
head
B.
heart
C.
brain
D.
mind
【单选题】A:Are you satisfied with her work, sir? B:Not at all、It couldn't be any _______.
A.
better
B.
best
C.
worse
D.
worst
【单选题】She ________ on her work so much that she didn’t notice that a crowd of people had _______around her.
A.
focused; focused
B.
fixed; gathered
C.
concentrated; concentrated
D.
carried; collected
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