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问题
单项选择题
铁锈色痰最常见于()
A.肺泡癌
B.支原体肺炎
C.急性肺脓肿
D.肺炎球菌肺炎
E.急性支气管炎
答案
参考答案:
D
选择题
—Mum, I've got an "A" in the math exam today!
—Great! And you are sure to win a second time because this is a good ______.
A. start
B. report
C. result
D. skill
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填空题
______:15=______÷5=20:______=0.8.
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