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牙齿意外损伤脱落后，脱落牙齿可以直接扔掉。()

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()要建立健全煤矿负责人和生产经营管理人员下井带班制度，明确下井带班的作业种类、下井带班人员范围、每月下井带班的次数、在井下工作时间、下井带班的任务和职责权限、日班与夜班比例，以及考核奖惩办法等。
A煤炭行业管理部门;
B煤矿企业;
C煤矿安全监察部门

保密责任主体包括法定代表人或主要负责人、、其他负责人、或负责人、。

()是指当电力网路中漏电电流达到危险值时，能自动切断电源的装置。
A检漏装置
B接地装置
C过流保护装置

Gold Rush My name is John Carter. I am from the state of Virginia. At the close of the Civil War I found（31）___ without a home, without money and without work, I decided to search for gold in the great（32）_ of the American Southwest. I spent almost a year（33）_ for gold with another former soldier, Captain James Powell, also of Virginia. We were（34）_ lucky. In the winter of 1865, we（35）_ rocks that held gold. Powell was trained as a mining（36）_. He said we had uncovered over a million dollars（37）_ of gold in only three months. But the work was（38）_ with only two men and not much equipment. So we decided Powell should go to the（39）_ settlement to seek equipment and men to help us with the work. On March the third, 1866, Powell said good-bye. He（40）_ his horse down the mountain toward the valley. Two days later, Powell came back with everything we needed to change our life forever. _ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
_ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
___ A．slow B．worth C．rode D．fortunately E．myself F．engineer G．discovered H．searching I．fast J．nearest K．extremely L．deserts
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