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【简答题】
什么是高油压的调速器？它有什么特点？
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举一反三
【单选题】影响机械调速器稳定调速率的主要因素是（）。
A.
调速弹簧的直径
B.
调速弹簧的长度
C.
调速弹簧的刚度
D.
调速弹簧的材料
【单选题】Hartwick college is a small liberal-arts school in upstate New York. Now it makes this offer to students, earn your undergraduate (67) in three years instead of four, and save about $ 43,000--the am...
A.
American higher education could learn a (77) from this. Many colleges and universities are (78) in the past. For instance,the idea of the fall-to-spring "school year" hasn’t changed much (79) the American Revolution, when students put their books away to work the soil (80) the summer. That long summer stretch no longer makes sense. While college (81) sit idle, they continue to generate maintenance, energy, and debt-service expenses that (82) to the high cost of running a college. Meanwhile, tuition has soared, leaving graduating students with unprecedented loan (83)
B.
Expanding the three-year option or year-round schedules may be (84) , but it may be more palatable(宜人的) than (85) Congress for additional bailout money, or asking students for even (86) tuition payments.
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【单选题】影响机械调速器稳定调速率的主要因素是（）。
A.
调速弹簧的直径
B.
调速弹簧的长度
C.
调速弹簧的刚度
D.
调速弹簧的材料
【单选题】Hartwick college is a small liberal-arts school in upstate New York. Now it makes this offer to students, earn your undergraduate (67) in three years instead of four, and save about $ 43,000--the am...
A.
American higher education could learn a (77) from this. Many colleges and universities are (78) in the past. For instance,the idea of the fall-to-spring "school year" hasn’t changed much (79) the American Revolution, when students put their books away to work the soil (80) the summer. That long summer stretch no longer makes sense. While college (81) sit idle, they continue to generate maintenance, energy, and debt-service expenses that (82) to the high cost of running a college. Meanwhile, tuition has soared, leaving graduating students with unprecedented loan (83)
B.
Expanding the three-year option or year-round schedules may be (84) , but it may be more palatable(宜人的) than (85) Congress for additional bailout money, or asking students for even (86) tuition payments.
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