皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
A lazy Susan is an addition to a table that is designed to assist in moving food from one person to another while dining. This is achieved through the use of a turntable (转盘), which usually moves the food in a circle when it is pushed by those at the table. In this way, the food never has to be picked up and passed around the table. Instead, it remains in place on the lazy Susan. A lazy Susan may also be a part of a kitchen cabinet (橱柜). In this sense, the lazy Susan is a type of shelving unit within the cabinet that is able to turn around its axis(轴心) . One may turn the lazy Susan in order to find certain goods in storage. From the outside, a lazy Susan appears to be two cabinets that are located at a right angle (直角) to each another. When one of these cabinets is pushed, however, both doors move and the lazy Susan is revealed inside. It is believed that Thomas Jefferson invented the lazy Susan in the 18th century, though it was called “dumbwaiter” at that time. It is said that Jefferson invented the lazy Susan because his daughter complained she was always served last at table and, as a result, never found herself full when leaving the table. Others believe that Thomas Edison was the inventor, as he is believed to have invented the turntable for his phonograph (留声机). The turntable may have developed into the lazy Susan later. Regardless of who invented it, it wasn’t until 1917 that the term “lazy Susan” was used in an advertisement for the invention. In Britain, however, the term “dumbwaiter” is still used rather than “lazy Susan”. The reason for the naming of it is still a mystery. One theory is that it was named after either Jefferson’s or Edison’s daughter, both of whom were named Susan. 小题1:What is a “lazy Susan”? A.A waitress B.A convenient tool C.A table D.A cabinet 小题2:According to those who believed Thomas Jefferson invented the lazy Susan, _______. A.his daughter was very lazy B.the lazy Susan didn’t exist until the 18th century C.Thomas Edison was his friend D.Thomas Edison didn’t invent the phonograph 小题3:We can learn from the last paragraph that ___________. A.the lazy Susan can work by itself B.the lazy Susan was named after Thomas Edison’s daughter C.how the lazy Susan got its name remains unknown D.the lazy Susan was invented in Britain 小题4: The writer wrote the passage mainly to _________. A.discuss how the lazy Susan was named B.teach us how to make a lazy Susan C.introduce Thomas Edison’s inventions D.tell us what a lazy Susan is and its origin
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】标准活性污泥法中的微生物用于自身增殖的磷量约为BOD的()%。
A.
0.5
B.
1
C.
2
D.
5
【简答题】甲、乙签订了-份买卖合同,合同约定:甲将-批木板卖给乙,乙于收到货物后-定期限内付款。为了保证合同履行,经乙与甲、丙协商同意,甲又与丙签订了-份质押合同。质押合同约定,丙以其可转让商标专用权出质为乙担保(已向有关部门办理了出质登记),当乙不能履行合同义务时,由丙承担质押担保责任。合同生效后,甲依约定将木板运送至乙所在地,乙认为木板质量不符合标准,要求退货。由于甲、乙签订的买卖合同中没有明确规定木板...
【单选题】哪一年,毛泽东第一次提出了“新民主主义革命”的概念?
A.
1946
B.
1936
C.
1950
D.
1939
【单选题】关于计算机病毒知识,下列叙述不正确的是( )
A.
计算机病毒是人为制造的一种破坏性程序
B.
大多数病毒程序都具有自身复制功能
C.
安装防病毒软件或防火墙,并不能完全杜绝病毒的侵入
D.
只有不使用来历不明的软盘才是防止病毒侵入的有效措施
【单选题】活性污泥增值曲线的对数增殖期内必备的条件是( )。
A.
微生物细胞酶系统对新环境逐渐适应
B.
营养物质非常充分
C.
微生物大量繁衍增殖
D.
微生物进行内源代谢以维持生理活动
【多选题】紧密纺纱技术的优点有:
A.
纱线强力高
B.
纱线条干好
C.
纱线毛羽少
D.
设备投资省
E.
车间飞花少
【单选题】活性污泥微生物的增殖
A.
是微生物合成反应和内源代谢反应两项生理活动的综合结果
B.
是微生物合成反应的量
C.
是微生物内源代谢反应的量
D.
是回流污泥的量
【单选题】活性污泥微生物的增殖量
A.
是微生物合成反应和内源代谢反应两项活动的差值
B.
是微生物合成反应的量
C.
是微生物内源代谢反应的量
D.
是回流污泥的量
【单选题】活性污泥的能含量,即( )是对活性污泥微生物增殖速度产生影响的主要因素,也是BOD去除速度、氧利用速度和活性污泥的凝聚、吸附性能的重要影响因素。
A.
有机物量与细菌量的比值
B.
有机物量与微生物量的比值
C.
污水总量与细菌量的比值
D.
污水总量与微生物量的比值
【单选题】活性污泥膨胀可分为两类,一类是因()异常增殖所导致的膨胀,一类是微生物代谢产物的大量积累而造成的高翻性膨胀。
A.
真菌
B.
藻类
C.
病毒
D.
丝状菌
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题