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Earthquake{{/B}} {{B}}How does an earthquake start {{/B}} What makes an earthquake happen The rock of the earth’s crust (地壳) may have a ’fault’, a kind of break in the surface. The blocks which make up the earth move, and sometimes this may cause the sides of the fault to move up and down or lengthways (纵向地) against each other. When one piece of rock starts to rub on another with great force, a lot of energy is used. This energy is changed into vibrations (振动) and it is these vibrations that we feel as an earthquake. The vibrations can travel thousands of kilometers and so an earthquake in Turkey may be felt in Greece. {{B}}What to do during an earthquake {{/B}} {{B}}At school{{/B}} As soon as the eart [单选题]黄芩单煎
A.56.76mg/g B.39.89mg/g C.30.68mg/g D.49.91mg/g E.33.35mg/g [判断题]金属零件产生疲劳破坏的原因是材料表面或内部有缺陷。
A.正确 B.错误 [判断题]礼仪的基本原则是和平共处的原则。
[单选题]32.六个基本视图的投影规律是“（）；长对正；主左右后：高平齐；俯左仰右：宽相等”。
A.主俯仰右 B.俯左后右 C.主左右后 D.主俯仰后 [填空题]大柴胡汤主治( )病。
[多选题]使用一级化学防护服前必须进行下列( )检查。
A.服装里外是否被污染。 B.服装面料和连接部位是否有孔洞、破裂。 C.整套服装气密性是否良好。 D.超压排气阀是否损坏,膜片工作是否正常。 E.视窗是否损坏,是否涂上保明液(涂保明液的视窗应不上雾)。 [多项选择]秦汉时期县一级的主要考课内容是户口垦田、（）。
A. 钱谷出入 B. 天象变异 C. 盗贼多少 D. 荐举贤才 [简答题]群众监督的形式和主要特点是？
[多选题]单台空压机故障应急处理中，运营至终点站，检查Tc车CREC柜（）和（）是否跳开，若跳闸则复位。(一般)
A.CMCCB1 B.CMCCB2 C.MCCB D.CORCB 我来回答: 提交
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