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【判断题】
我国采用的高程系是正常高高程系。A.
正确
B.
错误
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—The product carries one year’s guarantee. ________ I am covered if it doesn’t work? —That’s right, _______ it’s damaged.
A.
And; if
B.
So; unless
C.
But; before
D.
For; when
【单选题】关于枕三角的描述,哪项是正确的?
A.
又称颈后三角
B.
又称肩胛舌骨肌锁骨三角
C.
是由胸锁乳突肌后缘、斜方肌前缘和锁骨中1/3上缘围成的三角区
D.
由胸锁乳突肌后缘、斜方肌前缘和肩胛舌骨肌下腹上缘围成
E.
由胸锁乳突肌后缘、肩胛舌骨肌下腹和锁骨围成
【单选题】听力原文：How long is my product guaranteed for? (A) One year from the date of purchase. (B) This is our newest product. (C) I warrant you that our product is the best. (22)
A.
B.
【简答题】The company ____a new product next year.
【简答题】Year Product Introduction of product 1977 1984 1997 2001 2003 2007 2010
【单选题】Which one of the following transactions in a particular year is included in gross domestic product for that year?
A.
Social Security payments to retirees
B.
The government pays a computer services company that assisted in the delivery of Social Security payments to retirees.
C.
A car is produced in the previous year and remains in inventory for the entire year under consideration.
D.
A stay-at-home parent performs housework that the family would otherwise have paid a maid $20,000 a year to perform.
【简答题】通过单元体的两个互相垂直的截面上的切应力,大小 ,方向 。
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