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【单选题】
自然铜煅淬后的主要成分是A.
FeS2
B.
硫化铁
C.
醋酸亚铁
D.
Fe3O4
E.
FeO
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反馈参考答案：
举一反三
【简答题】血清碱性磷酸酶和γ—谷氨酰转肽酶显著升高而( )正常时, 应考虑肝癌的可能性。
【单选题】Now that we have lost all the documents, its no use______me and saying its all my fault.
A.
talking on
B.
coming on
C.
counting on
D.
turning on
【单选题】With all its advantages, the computer is by no means without its ______.
A.
boundaries
B.
restraints
C.
confinements
D.
limitations
【单选题】______ one-third of its employees is uncertain.
A.
The company will dismiss
B.
The company dismisses
C.
That the company will dismiss
D.
Will the company dismiss
【单选题】女性，15岁，左膝关节上方锤形肿胀伴疼痛半年余，近来出现咳嗽、咯血，X线检查示股骨下段骨质溶解，血清碱性磷酸酶升高，应考虑是（）
A.
骨肉瘤
B.
骨肉瘤肺转移
C.
骨巨细胞瘤
D.
骨结核
E.
骨结核、肺结核
【单选题】With all its advantages, the artificial intelligence is by no means without its ______ .
A.
boundaries
B.
restraints
C.
confinements
D.
limitations
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