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Bike Share Toronto is the city’s official bike share program, designed to give locals and visitors a fun, affordable and convenient alternative to walking, taxis, buses and the subway. There are 200 Bike Share Toronto stations and 2,000 bikes across the city, making Bike Share the most accessible way to get around and explore. How it works ●Become an Annual Member or buy a day Pass to access the system. ●Find an available bike nearby, and get a ride code or use your member key to unlock it. ●Take as many short rides as you want while your pass or membership is active. ●Return your bike to any station, and wait for the green light on the dock ( 停靠点 ) to make sure it’s locked. Choose a plan ●For visitors Day Pass: $7. Unlimited 30-minute rides in a 24-hour period. 3-Day Pass: $15. Unlimited 30-minute rides in a 72-hour period. ●For locals Monthly Pass: $25. Unlimited 30-minute rides for a month. Annual Membership: $90. Unlimited 30-minute rides for a whole year. The Annual Membership is the best deal for locals of Toronto and other frequent riders. The first 30 minutes of each ride is included with the membership or pass price. Avoid extra fees by dropping off your bike every 30 minutes at any other station. If you keep a bike out for longer than 30 minutes at a time, you will be charged an extra $1.50 for the first 30 minutes over, $4 for the next 30 minutes, and $7 for each additional 30 minutes after that. Contact us ●Customer Service: (855)898-2388 ●Repair Service: (855)-2378 ●Corporation Partners: (855)898-2398 ●Employment Opportunities: (855)898-2498
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【简答题】举例说明硫酸铵分级沉淀的操作步骤
【简答题】(7分)小明同学利用已有的知识弄清家里化肥的成分,他看到袋中化肥是白色晶体,用少量肥料跟熟石灰一起研磨,有浓烈的刺激性气味,初步判定是一种氮肥。 为进一步证实肥料的成分,小明将少量肥料样品带到学校进行探究。 探究内容 现象 结论 实验1:取一定量的肥料放入水中,震荡 样品完全溶解 ______ ___________ 实验2:取实验1中的部分溶液,滴加石蕊试剂 溶液呈红色 _______ ____...
【判断题】sbit 不可用于定义内部RAM可位寻址区,只能用在可位寻址的SFR上。
A.
正确
B.
错误
【简答题】什么叫分步沉淀(或分级沉淀)?试举例说明。
【简答题】试论述沉淀重量法的基本操作步骤,并举例硫酸钡重量法测硫的基本原理。
【单选题】下列服务形式中最具英式服务特点的是()
A.
客前烹制
B.
染烟表演
C.
男主人分菜
D.
银盘服务
【单选题】关于电位移矢量的高斯定理,下列说法中正确的是哪一个?
A.
高斯面内不包围自由电荷,则面上各点电位移矢量 为零
B.
高斯面上处处 为零,则面内必不存在自由电荷
C.
高斯面的 通量仅与面内自由电荷有关
D.
电位移矢量 通量与自由电荷和束缚电荷都有关系
【简答题】在普通碳素钢中,随着含碳量的增加,钢材的屈服点和极限强度,塑性,韧性,可焊性,疲劳性能 ;
【单选题】一物体受到三个共面共点力 的作用,三力的矢量关系如图所示(小方格边长相等),则下列说法正确的是()
A.
三力的合力有最大值 ,方向不确定
B.
三力的合力有唯一值 ,方向与F3同向
C.
三力的合力有唯一值 ,方向与F3同向
D.
由题给条件无法求出合力大小
【简答题】小明同学利用已有的知识弄清家里化肥的成分,他看到袋中化肥是白色晶体,用少量肥料跟熟石灰一起研磨,有浓烈的刺激性气味,初步判定是一种氮肥.为进一步证实肥料的成分,小明将少量肥料样品带到学校进行探究. 探究内容 现象 结论 实验1:取一定量的肥料放入水中,振荡 样品完全溶解 实验2:取实验1中的部分溶液,滴入石蕊试剂 溶液呈红色 实验3:另取实验1中的部分溶液,滴加氯化钡试剂与稀盐酸 有白色沉淀生成 ...
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