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问题
名词解释
低组配
答案
参考答案:
焊缝金属强度比母材高强度低的接头匹配。
选择题
— Why does the Lake smell terrible?
— Because large quantities of water _____.
A. have polluted
B. is being polluted
C. has been polluted
D. have been polluted
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单项选择题 B型题
地高辛与氢氯噻嗪同服的相互作用属于()
A.物理学变化
B.化学变化
C.药效学变化
D.药动学变化
E.微生物学变化
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