| Modern mass-production methods lower the cost of
making goods, and thus give us better values. At the same time, American
ingenuity (独创性) and science are constantly at work improving the quality of
products. (79) {{U}}In this way, better quality products at good values are
continually being brought to the people of all income groups. {{/U}} As an example of how this worked, when facial tissues (面巾纸) were first put on the market in 1924, they were made in limited quantities and sold at 65 cents per box of 200. People like these facial tissues immediately and began asking for them when they went into different stores. Because there was such a demand for the product, manufacturers began making tissues in larger and larger quantities. Because the manufacturers were A. the price of the goods should drop B. the quality of the goods should improve C. the price and the quality should both rise D. the quality and the price should both drop [名词解释]Hamman-Rich综合征
[多选题]除按照规定不需要发给税务登记证件的外，纳税人办理下列事项时，必须持税务登记证件的有（ ）。
A.开立银行账户 B.办理纳税申报 C.申请办理延期申报、延期缴纳税款 D.领购发票 E.申请开具外出经营活动税收管理证明 [简答题]确定地基承载力有哪些方法？
[单选题]4岁小儿标准体重是
A.12Kg B.14Kg C.16Kg D.18Kg E.20Kg [单选题]单选题消烟的关键是使煤燃烧充分,不生成一氧化碳和( )。
A.飞灰 B.氧化硫和氮氧化物 C.炭黑 [单选题]正线在R≤450m中等减振地段，配置轨枕标准为（ ）根/km
A.1480 B.1560 C.1680 D.1760 [单选题]所谓的调节阀风开、风关的选择依据-“工艺生产的安全”是指：即在信号压力中断时应保证（）的安全。
A.A.设备 B.B.操作人员 C.C.环境 D.D.设备或操作人员 我来回答: 提交
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