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细拉土、砂类土和砾石土不论采用何种压实机械，均应在该种土的最佳含水率±2%以内压实。
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Would-be language teachers everywhere have one thing in common: they all want some recognition of their professional status and skills, and a job. The former requirement is obviously important on a personal level, but it is vital if you are to have any chance of finding work.Ten years ago, the situation was very different. In virtually, every developing country, and in many developed countries as well, being a native English speaker was enough to get you employed as an English teacher.Now employers will only look at teachers who have the knowledge, the skills and attitudes to teach English effectively. The result of this has been to raise non-native English teachers to the same status as their native counterparts--something they have always deserved but seldom enjoyed. Non- natives are now happy-linguistic discrimination is a thing of the past.An ongoing research project, funded by the University of Cambridge, asked a sample of teachers, teacher educators and employers in more than 40 countries whether they regard the native/non- native speakers distinction as being at all important. "NO" was the answer. As long as candidates could teach and had the required level of English, it didn’t matter who they were and where they came from. Thus a new form of discrimination this time justified because it singled out the unqualified-liberated the linguistically oppressed. But the Cambridge project did more than just that, it con- firmed that the needs of native and non-native teachers are extremely similar. The phrase "the linguistically oppressed" (Line 6, Para. 4) refers to those who were（）
The cafe, (open)（）last year, is very popular among the students in this school.
University Physics is intended for students of science and engineering. Primary emphasis is on physical principles and problem- (46) ; historical background and specialized practical applications have been given a place of (47) importance. Many worked-out examples and an extensive collection of problems are included within each chapter.In this (48) edition, the basic philosophy and outline and the balance between depth of treatment and (49) of subject-matter coverage are unchanged from previous editions. We have tried to preserve those features that users of (50) editions have found desirable, (51) incorporating a number of changes that should enhance the book’s usefulness.The textbook is adaptable to a wide variety of (52) outlines. The entire textbook can be used for a(n) (53) course two or three semesters in length. For a less intensive course, many instructors will want to (54) certain chapters or sections to tailor the book to their individual needs. The arrangement of this edition facilitates this kind of (55) 55（）
Hawaii’s native minority is demanding a greater degree of sovereignty over its own affairs. But much of the archipelago’s political establishment, which includes the White Americans who dominated until the Second World War and people of Japanese, Chinese and Filipino origin, is opposed to the idea. The islands were annexed by the US in 1898 and since then Hawaii’s native peoples have fared worse than any of its other ethnic groups. They make up over 60 percent of the state’s homeless, suffer higher levels of unemployment and their life span is five years less than the average Hawaiians. They are the only major US native group without some degree of autonomy. But a sovereignty advisory committee set up by Hawaii’s first native governor, John Waihee, has given the natives’ cause a major boost by recommending that the Hawaiian natives decide by themselves whether to re-establish a sovereign Hawaiian nation. However, the Hawaiian natives are not united in their demands. Some just want greater autonomy with the state—as enjoyed by many American Indian natives over matters such as education. This is a position supported by the Office of Hawaiian Affairs (OHA), a state agency set up in 1978 to represent to natives’ interests and which has now become the moderate face of the native sovereignty movement. More ambitious in the Ka Lahui group, which declared itself a new nation in 1987 and wants full, official independence from the US. But if Hawaiian natives are given greater autonomy, it is far from clear how many people this will apply to. The state authorities only count those people with more than 50 percent Hawaiian blood as native. Native demands are not just based on political grievances, though. They also want their claim on 660,000 hectares of Hawaiian crown land to be accepted. It is on this issue that native groups are facing most opposition from the state authorities. In 1933, the state government paid the OHA US $136 million in back rent on the crown land and many officials say that by accepting this payment the agency has given up its claims to legally own the land. The OHA has vigorously disputed this. Which of the following groups holds a less radical attitude on the matter of sovereignty
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