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普通机械化开采工作面的装煤方式为：【 】
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普通机械化开采工作面的装煤方式为：【 】
A、爆破装煤
B、人工装煤
C、机械装煤
D、装煤机装煤
时间：2021-09-01 20:19
关键词：
联大
河南理工大学
采矿学
答案解析
C
相关问题
boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
普通机械化开采工作面的装煤方式为：【 】
普通机械化开采与爆破开采的主要区别为：【 】
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阅读下面的句子并选择正确的汉语翻译。 目：1 Having a healthy snack on hand, like a granola bar or fruit can help your blood sugar levels and may provide a healthy boost of energy回答 2 Instead of sending an email to your co-worker, walk to her desk or just take the stairs today, even though youre tired回答 3 Moreover, these people may be friends or strangers — people of your own age, or people who are younger or older than you回答 4 People in different countries have different ideas of what sounds friendly, polite or sincere — and of what sounds rude or unfriendly!回答 选项：
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ORS液配制后的张力为（）
Mainly east 3 or 4 partly cloudy to overcast occasional rain（）slowly south moderate or good.
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Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.
已知A=40；B=30；C=100；D=50，逻辑“与”运算符为and，“或”运算符为or，“非”运算符为not。计算表达式（A>B+20）or（B+60
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If he is a common carrier，he is absolutely responsible to the owner of the goods carried （）any loss or damage to them unless caused by an Act of God or the Queen’s enemies，or the inherent vice in the goods themselves，or the negligence of the owner of the goods，or a general average sacrifice.
系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。
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