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Java语言的各种数据类之间提供两种转换：______和强制转换。
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治安行政处罚是我国行政处罚的一种。根据《治安管理处罚法》的规定，它的种类有警告、罚款、行政拘留、吊销营业执照等。 ( )
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关系代数中，运算的三要素是指运算对象、运算符和______。
Task 1Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 to 40. For each question or statement there are 4 choices marked A), B), C) and D). You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the centre. In many countries such as France, Greece, and Japan, it is often more difficult for students to pass the college entrance exams than to do the course work when they are actually in college and students who don’t have much money are at a disadvantage. Students prepare for these tests for years in advance. Often, students attend a private school at night to get ready for them. These private schools are usually expensive. If their families don’t have much money, students can’t attend and they might not pass the entrance exams without this extra preparation. In contrast, students can easily get into an American or Canadian college--at least more easily than in other countries. American students take an entrance exam called the S. A. T (the Scholastic Aptitude Test 学习能力测验). However, colleges do not consider only S. A.T. scores. They also consider a student’s grades and activities throughout high school. A student who has done well in high school will probably get into college. What happens when a student finally enters a college or university Students in China, Korea or Japan might find their college studies easier than high school work. On the other hand, when American or Canadian students begin college, many of them discover that they need to work very hard and study seriously for the first time in their lives especially if they plan to go to graduate school. From the first paragraph we can see that before entering college, students must ______.
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