皮皮学，免费搜题
登录
搜题
【简答题】
2010年3月22日上午9时，某模具厂铸工车间女工正在一台自制的砂轮机上进行铸件清砂作业。突然，高速旋转的砂轮破裂飞出，碎片击中其头部，该女工当场身亡。 依据以上场景，请分析事故原因及应采取的预防措施。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】毛泽东在《论人民民主专政》一文中指出:“十月革命一声炮响,给中国送来了马克思主义。”这是说( )
A.
十月革命以后马克思主义才开始在中国传播
B.
十月革命给予中国人一个启示,即经济文化落后的国家也可以用社会主义思想指引自己走向解放之路
C.
十月革命推动中国的先进分子把自己的目光从西方转向东方,从资产阶级民主主义转向社会主义
D.
十月革命中俄国工人、农民和士兵群众的广泛发动并由此赢得胜利的事实,给予中国的先进分子以新的革命方法的启示。
【多选题】毛泽东在《论人民民主专政》一文中指出:“十月革命一声炮响,给中国送来了马克思主义。”这是说( )
A.
十月革命以后马克思主义才开始在中国传播
B.
十月革命给予中国人一个启示，即经济文化落后的国家也可以用社会主义思想指引自己走向解放之路
C.
十月革命推动中国的先进分子把自己的目光从西方转向东方，从资产阶级民主主义转向社会主义
D.
资本主义制度并不是永恒的，无产阶级和其他劳动群众完全可以依靠自身的力量创造出维护绝大多数人利益的崭新的社会制度
【简答题】isoosmotic solution and isotonic solution：
【单选题】某船按载重线计算得航次最大排水量6530t(吃水不受限),燃油和淡水总量为571t,常数为48t,空船排水量为2103t,从ρ=1.002g/cm3水域启航时船舶净载重量为()t。
A.
3895
B.
3723
C.
3449
D.
3808
【单选题】某船按载重线计算得航次最大排水量 6530t (吃水不受限) , 燃油和淡水总量为 571t, 常数为 48t, 空船排水量为 2103t, 从ρ =1.002g/cm 3 水域启航时船舶净载重量为 _______t 。 (小吨位船试题)
A.
3723
B.
3808
C.
3895
D.
3449
【单选题】Solution A and B are separated by a semipermeable membrane that is permeable to K + but not to Cl - . Solution A is 100mM KCl , and solution B is 1mM KCl . Which of the following statements about sol...
A.
K + ions will diffuse from solution A to solution B until the [K + ] of both solutions is 50.5mM
B.
K + ions will diffuse from solution B to solution A until the [K + ] of both solutions is 50.5mM
C.
KCl will diffuse from solution B to solution A until the [K + ] of both solutions is 50.5mM
D.
K + will diffuse from solution to A solution B until a membrane potential develops with solution A negative with respect to solution B
E.
K + will diffuse from solution to A solution B until a membrane potential develops with solution A positive with respect to solution B
【单选题】Solution A and B are separated by a semipermeable membrane that is permeable to K + but not to Cl - . Solution A is 100mM KCl, and solution B is 1mM KCl. Which of the following statements about soluti...
A.
K + ions will diffuse from solution A to solution B until the [K + ] of both solutions is 50.5mM
B.
K + ions will diffuse from solution B to solution A until the [K + ] of both solutions is 50.5mM
C.
KCl will diffuse from solution B to solution A until the [K + ] of both solutions is 50.5mM
D.
K + will diffuse from solution A to solution B until a membrane potential develops with solution A negative with respect to solution B
E.
K + will diffuse from solution A to solution B until a membrane potential develops with solution A positive with respect to solution B
【简答题】Doctors envision that the nanomotor would travel through human bodies to____________．
相关题目：