Vì đây không phải là một trong những lựa chọn trả lời, nó là cần thiết để đơn giản hóa hơn nữa. Với kiến thức là 1 + x = x + 1 và 1 x = - (x - 1), có thể khẳng định rằng bởi vì tiêu cực, khi bình phương, tích cực. Câu trả lời đúng | The Official Guide for GMAT Review 12th Edition Supporting ideas Use the process of elimination to discover the only characteristic of local entrepreneurs that is NOT explicitly stated in the passage. To do this check each answer choice against the description of local entrepreneurs found in lines 28-33 of the passage. A Line 27 does identify them as a nearly ubiquitous resource meaning that they are found in most places. B Line 33 says they create an environment that fosters further entrepreneurship. C Correct. Out-of-town investors are not mentioned in the passage. D Lines 31-32 say that industry and talent are kept at home and that they create an environment that provides jobs. E Line 28 describes them as having roots in their communities. The correct answer is C. 30. The author of the passage mentions which of the following as an advantage of high-technology development A It encourages the modernization of existing manufacturing facilities. B It promotes healthy competition between rival industries. C It encourages the growth of related industries. D It takes full advantage of the existing workforce. E It does not advantage one local workforce at the expense of another. Supporting ideas To answer this question look for an advantage of high-technology development that is explicitly mentioned in the passage. In the second paragraph the efforts of local governments to attract new high-technology firms are judged preferable to previous efforts to entice established manufacturing industries from another town to their own. Thus the introduction of high technology made it possible for local governments to stop victimizing other geographical areas by taking their jobs lines 17-18 . A The passage does not describe modernization of facilities. B Competition between rival industries is not mentioned in the passage. C The growth of related industries is not cited as an advantage. D Lines 19-21 explain that high-tech manufacturing firms employ only a fraction of the .