题目内容
气动三联件是由____和____,____组成。
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气压传动适宜远距离传动。
Directions: fill in the blanks with words or phrases from the box below. Change the form where necessary.enrollment, optimistic, relieved , appetite , stable, independent, internship, obligation, easedrift along, put aside, move along, head for, make one's way, above all, carve out, equal to,figure out.1.New measures have been introduced to________traffic congestion in the city.2. Although she began as her brother's research assistant, she went on to pursue her own studies.3. The optimistic view is that college student is climbing and will continue to do so, only at a slower-than-anticipated rate.4.She's just to have snagged a fairly secure job, and doesn't have to look at the want ads all day.5. Parents have a legalto ensure that their child receives nine years of compulsory education.6. The company had $2.1 billion in net cash at the end of last year, about 51% of its market value.7.Peter and Jane begin to feel more like roommates rather than a couple. It might be a sign that their marriage is trouble.8. Instead of following the career path designed by his parents, he managed to a successful photographic career for himself.9.In my view, Jeff must his pride and apologize to his wife and children.10. If we served more soft drinks, there would be fewer hangovers and, , fewer drink-driving accidents.11. He intends to prepare himself to in the world by first getting a college degree.12.I hope that we can things and get the negotiations going again.13.Most emerging adults are very , believing that they have good chances of living "better than their parents did."14. John aimlessly after graduating from college, saying that he wanted to figure out what he wanted to do with his life.15. At some colleges and universities, every student completes an to bridge the gap between academics and the working world.
摘除胸腺的乳鼠，下列哪项不正确：
T细胞能识别特异性抗原，因其表面有：
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