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【简答题】
有一主频为 25MHz的微处理器,平均每条指令的执行时间为两个机器周期,每个机器周期由两个时钟脉冲组成。 ( 1)假定存储器为“O”等待,请计算机器平均速度(每秒钟执行的机器指令条数) ( 2)假如存储器速度较慢,每两个机器周期中有一个访问存储器周期,需插入两个时钟的等待时间,请计算机器平均速度。
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【单选题】低钾血症的表现是（）
A.
惊厥
B.
腱反射亢进
C.
手足搐搦
D.
震颤
E.
肌肉的收缩性降低
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【单选题】?Read the article below about the difficulties of managing a small business, and the questions on the opposite page. ?For each question 13—18, mark one letter (A, B, C, or D) on your Answer Sheet for ...
A.
It is wrong to assume that they are different from other managers.
B.
The problems they have to cope with are specific to small businesses.
C.
They find it difficult to attract staffs with sufficient expertise.
D.
They could learn from the organizational skills of managers in large companies.
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【单选题】?Read the following article about a British businessman and the questions. ?For each question (15-20), mark one letter (A, B, C o r D) on your Answer Sheet. George Kamp is the kind of tough English no...
A.
He has problems with management.
B.
Another company wants to gain control of it.
C.
He is looking for new advisers to help run it.
D.
There have been complaints about his management style.
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【单选题】炭疽杆菌之所以能引起美国人的恐慌,主要原因之一是能产生两种成分的蛋白质内毒素。有的科学家将该菌的大型DNA分子破坏,该菌仍然能产生内毒素。请分析推断,应该再破坏该菌的什么结构,才能使它从根本上不再产生内毒素( )
A.
核糖体
B.
细胞核
C.
质粒
D.
内质网
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【简答题】Malcolm X's considerable frustration at his inability to read and write ______ a quest to overcome his deficiencies. (Para. 4)
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【单选题】女性患儿, 2 岁,因呼吸困难给予氧疗,合适的给氧方法是
A.
鼻导管法
B.
鼻塞法
C.
面罩法
D.
氧气枕法
E.
头罩法
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【单选题】Some students lose marks in reading comprehension (阅读理解) _____ because they don't read the question carefully. [     ]
A.
nearly
B.
simply
C.
hardly
D.
almost
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【单选题】有人这样评价商鞅及其变法 , “商鞅可以称为中国历史上第一个真正彻底的改革家 , 他的改革不仅限于当时 , 更影响了中国数千年 ” 。 下列关于商鞅变法对中国历史发展影响的叙述 , 正确的是 1客观上有利于中国结束分裂 , 走向统一 2重农抑商政策成为后世奉行的基本经济政策 3专制主义中央集权制度大行于世 4对人民实行从精神到肉体的严格控制 , 成为后世帝王的统治原则
A.
①②③④
B.
①②④
C.
③④
D.
①②③
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【单选题】低钾血症的表现是
A.
惊厥
B.
腱反射亢进
C.
手足抽搐
D.
震颤
E.
肌肉的收缩性降低
查看完整题目与答案
【单选题】•Read the following passage below about a Chairman's Statement. •For each question (23-28), choose the correct answer. •Mark one letter (A, B or C) on your Answer sheet. CHAIRMAN'S STATEMENT Despite t...
A.
It laced increased competition.
B.
It wanted to enter new markets.
C.
It initiated a policy of expansion.
查看完整题目与答案
相关题目：
【单选题】低钾血症的表现是（）
A.
惊厥
B.
腱反射亢进
C.
手足搐搦
D.
震颤
E.
肌肉的收缩性降低
查看完整题目与答案
【单选题】?Read the article below about the difficulties of managing a small business, and the questions on the opposite page. ?For each question 13—18, mark one letter (A, B, C, or D) on your Answer Sheet for ...
A.
It is wrong to assume that they are different from other managers.
B.
The problems they have to cope with are specific to small businesses.
C.
They find it difficult to attract staffs with sufficient expertise.
D.
They could learn from the organizational skills of managers in large companies.
查看完整题目与答案
【单选题】?Read the following article about a British businessman and the questions. ?For each question (15-20), mark one letter (A, B, C o r D) on your Answer Sheet. George Kamp is the kind of tough English no...
A.
He has problems with management.
B.
Another company wants to gain control of it.
C.
He is looking for new advisers to help run it.
D.
There have been complaints about his management style.
查看完整题目与答案
【单选题】炭疽杆菌之所以能引起美国人的恐慌,主要原因之一是能产生两种成分的蛋白质内毒素。有的科学家将该菌的大型DNA分子破坏,该菌仍然能产生内毒素。请分析推断,应该再破坏该菌的什么结构,才能使它从根本上不再产生内毒素( )
A.
核糖体
B.
细胞核
C.
质粒
D.
内质网
查看完整题目与答案
【简答题】Malcolm X's considerable frustration at his inability to read and write ______ a quest to overcome his deficiencies. (Para. 4)
查看完整题目与答案
【单选题】女性患儿, 2 岁,因呼吸困难给予氧疗,合适的给氧方法是
A.
鼻导管法
B.
鼻塞法
C.
面罩法
D.
氧气枕法
E.
头罩法
查看完整题目与答案
【单选题】Some students lose marks in reading comprehension (阅读理解) _____ because they don't read the question carefully. [     ]
A.
nearly
B.
simply
C.
hardly
D.
almost
查看完整题目与答案
【单选题】有人这样评价商鞅及其变法 , “商鞅可以称为中国历史上第一个真正彻底的改革家 , 他的改革不仅限于当时 , 更影响了中国数千年 ” 。 下列关于商鞅变法对中国历史发展影响的叙述 , 正确的是 1客观上有利于中国结束分裂 , 走向统一 2重农抑商政策成为后世奉行的基本经济政策 3专制主义中央集权制度大行于世 4对人民实行从精神到肉体的严格控制 , 成为后世帝王的统治原则
A.
①②③④
B.
①②④
C.
③④
D.
①②③
查看完整题目与答案
【单选题】低钾血症的表现是
A.
惊厥
B.
腱反射亢进
C.
手足抽搐
D.
震颤
E.
肌肉的收缩性降低
查看完整题目与答案
【单选题】•Read the following passage below about a Chairman's Statement. •For each question (23-28), choose the correct answer. •Mark one letter (A, B or C) on your Answer sheet. CHAIRMAN'S STATEMENT Despite t...
A.
It laced increased competition.
B.
It wanted to enter new markets.
C.
It initiated a policy of expansion.
查看完整题目与答案