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【单选题】
What is the possible meaning of 'aikido' in Paragraph 2?A.
Defending oneself by making use of the rival's strength.
B.
Attacking the obvious weakness of the opponent.
C.
Observing the power contrast between the two sides.
D.
Temporary compromising in attempt to launch a violent fight-back.
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【单选题】4 单选The crystalline structure of Silicon carbide is with alternating Si and C atoms covalently bonded together
A.
Cubic-like
B.
Diamond-like
C.
Hexagon-like
D.
Layer-like
【单选题】The crystalline structure of Silicon carbide is with alternating Si and C atoms covalently bonded together
A.
Cubic-like
B.
Diamond-like
C.
Hexagon-like
D.
Layer-like
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