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【多选题】
能全部通过六号筛,但混有能通过七号筛不超过95%的粉末;能全部通过二号筛,但混有能通过四号筛不超过40%的粉末对应的粉末类别是( )A.
最细粉
B.
粗粉
C.
细粉
D.
超细粉
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反馈参考答案：
举一反三
【单选题】The electricity company are threatening to ______ us _____.
A.
cut; up
B.
cut; down
C.
cut; in
D.
cut; off
【单选题】---Have you heard of Earth Day? --- Yes, We have only one Earth. We have no choice but ________ it.
A.
protect
B.
protected
C.
protecting
D.
to protect
【简答题】A．Only if we have much in common. B．Only if we know our friends’mistakes. C．Only if we treat our disagreements wisely. D．Only if we have known one another for long.
【单选题】When we are born, we have 300 bones, but by _______________, we have only 206.
A.
publication
B.
ideology
C.
adulthood
D.
foundation
【单选题】患者，女，48岁。右乳房发现肿块2个月。查体：右乳房头抬高，右乳外上象限可扪及一个2cm×2.5cm大小肿块，质硬，表面不平，边界不清。应首先考虑的诊断是
A.
乳腺纤维瘤
B.
乳腺增生病
C.
乳岩
D.
乳房结核
E.
乳癖
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