【单选题】【消耗次数：1】
关于分子影像学的叙述，以下哪一项错误
①
可在细胞和分子水平成像
②
在体成像
③
对生物活动过程成像
④
实时成像
⑤
定性分析但不能定量
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相关题目
【单选题】
CT与X线成像比较，以下哪一项是错误的
①
CT与X线成像都需要X线管
②
X线图像所显示的是二维重叠图像
③
CT所显示的是断面解剖图像
④
CT的空间分辨力高于X线图像
⑤
CT的密度分辨力高于X线图像
【单选题】
关于磁共振成像描述错误的是
①
使用特定频率的射频脉冲激发
②
氢原子核吸收能量后纵向磁化减小
③
激发停止后原子核的相位和能级都恢复到激发前的状态
④
纵向弛豫时间T2是恢复到最大值63%所用的时间
⑤
纵向弛豫与横向弛豫同时发生
【简答题】
简述CT成像的原理和过程
随机题目
【判断题】
The Transcendentalist group includes two of the most significant writers America has produced so far, Emerson and Henry David Thoreau.
①
正确
②
错误
【判断题】
At the Reason and Revolution Period, Americans were influenced by the European movement called Romanticism Movement.
①
正确
②
错误
【判断题】
In the novel Moby Dick, the rebellious struggle of Captain Ahab was thought to be against the white whale.
①
正确
②
错误
【判断题】
In William Cullen Bryant’s poem “Thanatopsis”, the title means view of death.
①
正确
②
错误
【单选题】
About the novel The Scarlet Letter, which of the following statements is NOT right?
①
Its very hard to say that it is a love story or a story of sin.
②
Its a highly symbolic story and the author is a master of symbolism.
③
Its mainly about the moral, emotional and psychological effects of the sin upon the main characters and the people in general.
④
In it the letter A takes the same symbolic meaning throughout the novel.
【单选题】
In the novel Moby Dick, the rebellious struggle of Captain Ahab was thought to be against ____.
①
the white whale
②
the gliding great demon of the seas of life
③
the overwhelming, mysterious vastness of the universe and the awesome forces
④
the savage harpooners and the motley crew
【单选题】
The Romantic Period in American literature stretches from the end of the 18th century to the outbreak of _________.
①
the Revolutionary War
②
the Civil War
③
the War for Independence
④
World War
【单选题】
As a great innovator in American literature, Walt Whitman wrote his poetry in an unconventional style which is now called free verse, which is ______.
①
lyrical poetry with chanting refrains
②
poetry without a fixed beat or regular rhyme scheme
③
poetry without rhymes at the end of the lines but with a fixed beat
④
poetry in an irregular metric form and expressing noble feelings
【单选题】
Washington Irving’s_________ became the first work by an American writer to win financial success on both sides of the Atlantic in the first half of the 19th century.
①
Charles the Second
②
Sketch Book
③
The Scarlet Letter
④
Moby Dick I
【单选题】
In William Cullen Bryant’s poem “Thanatopsis”, the title means______.
①
view of life
②
view of death
③
view of youth
④
world outlook