科学家在研究细胞膜运输物质时发现有四种关系,分别用下图中四条曲线表示,在研究具体的物质X时,发现与曲线②和④相符。试问:细胞膜运输物质X的方式是()
A.自由扩散
B.主动运输
C.协助扩散
D.胞吐
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二等分试验是在纸的中央画一条水平直线,患者目测找出中点,异常标准是向左偏离百分数()
A.大于3.16%
B.大于1.16%
C.小于1.16%
D.小于2.51%
E.大于2.51%
句式转换。 1. That's my sister. (改为复数形式) _____ are my _____. 2. This is an egg. (改为复数形式) _____ _____ eggs. 3. Those are her cousins. (改为单数形式) _____ _____ her _____. 4. These are his brothers. (改为单数形式) _____ _____ his _____. 5. His brother is a worker. (改为一般疑问句) _____ _____ brother a worker ? 6. These are your brothers. (改为否定句) _____ _____ your brothers. 7. She is my aunt. (改为一般疑问句) _____ she _____ aunt? 8. His keys are on the sofa. (改为一般疑问句并作简短肯定、否定回答) _____ _____ keys on the sofa? Yes, _____ _____ . _____ they _____. 9. Her backpack is on the bed. (画线提问) _____ _____ her backpack? 10. The baseballs are under the sofa. (画线提问) _____ _____ _____ _____. |
参观旅游时,下列哪种行为是符合礼仪要求的?()
A.公共场所高声交谈
B.强拉外宾合影
C.不攀爬触摸文物
农行某网点负责人对辖内员工违规办理业务视而不见,在业务检查中掩盖违规事实,逃避整改处罚。指出责任人违反的条款及应给予的处分档次()。
A、袒护违规人员,掩盖事实,使其逃避制裁的
B、参与违规形成案件的
C、记过至开除
D、记过至撤职
用坑木打点柱时,坑木粗头向下,细头向上。()