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【判断题】
过滤离心机是利用过滤原理,以离心力为推动力来分离液固两相的机械,过滤离心机要求液固两相要有一定的密度差。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】将患根分叉病变的多根牙中破坏最严重的牙根截除，同时保留牙冠和其余的牙根，继续行使功能，此种方法是
A.
翻瓣术
B.
植骨术
C.
引导性组织再生术
D.
截根术
E.
牙半切术
【简答题】We were number 14 in the industry at that time and our performance fell behind other large companies. Our company was sunk in debt. We paid less than our competitors. While in the_____1of the poor si...
【单选题】The sea anchor shown as item number 14 will NOT（）.
A.
check the liferaft's way
B.
keep the liferaft end on to the sea
C.
reduce the possibility of capsizing or broaching
D.
right the raft if it inflates inverted
【简答题】翻译短语 营销策略
【单选题】According to the woman, which bus will they take in order to save time?
A.
Number 14.
B.
Number 13.
C.
Number 29.
D.
Number 31.
【简答题】Number 14
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