MBA考试

【单选题】The invention of both labor-saving tools and tools of intelligence is rarely accidental. Instead, it is usually the product of human need; (21) is truly the mother of invention. People usually devise tools to (22) for natural deficiencies. For example, people invented weapons to defend (23) from physically superior (24) .But (25) is only one incentive for inventions. People also invent (26) tools to (27) certain established tasks more efficiently. For instance, people developed the bow and arrow from the (28) spear or javelin in order to shoot (29) and strike with greater strength.
(30) civilizations developed, greater work efficiency came to be demanded, and (31) tools became more (32) .A、tool would (33) a function until it proved (34) in meeting human needs, at which point an improvement would be made. One impetus for invention has always been the (35) for speed and high-quality results--provided they are achieved (36) reasonable costs. Stone pebbles were sufficient to account for small quantities of possessions, (37) they were not efficient enough for performing sophisticated mathematics. However, beads arranged systematically evolved into the abacus. The (38) of this tool can be (39) to the development of commerce in theEast around 3000B、C、, and the abacus is known (40) by the ancientBabylonians,Egyptians,Chinese, etC、
A、originsB、devices C、sources D、evidences
网考网参考答案：A
网考网解析：
本题测试逻辑搭配。origin意为“起源，开端”，指事物开始存在或起源的始点；device意为“设计，装置”，指为特定的目的而做出的设计或发明；source意为“来源，源极”，指某事物形成、起源或取得的根本；evidence意为“证据，证物”。本文主要讲的是工具的起源与发展，所以应该选用A。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>