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【单选题】
1彩色血流频移大于1/2PRF(脉冲重复频率)时出现折返,这称为
A.
Nyquist(内奎斯特)极限
B.
富里叶变换
C.
运动目标显示法(MTI)
D.
自相关技术
E.
彩色血流显像的滤波
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【多选题】病毒的结构由以下哪几项组成
A.
核衣壳
B.
细胞壁
C.
包膜
D.
细胞膜
E.
核质
【单选题】The best title for this passage might be ______.
A.
Freud, A Brave Nan
B.
Freud, A Famous Thinker
C.
Freud, A Humorous Man
D.
Freud, A Doctor of Vienna
【多选题】按所应用的电流种类,电机可分为()。
A.
直流电机
B.
交流电机
C.
感应电机
D.
同步电机
E.
永磁电机
F.
单相电机
G.
特种电机
【简答题】按所应用的电流种类,电机可分为(),和()。 磁路一般由()组成。 铁磁材料的磁阻随饱和程度的增加而()。 交流磁路中,励磁电流是()和()的合成。
【简答题】下面选项中,能够正确创建BasicDataSource对象的代码是()A. BasicDataSource ds = new BasicDataSource(); B. DataSource ds = new BasicDataSource(); C. BasicDataSource ds = BasicDataSourceFactory.createDataSource(); D. DataSo...
【判断题】我国瓷器出现于1万多年前,标志着新石器时代的开始。
A.
正确
B.
错误
【单选题】Which of the following can be inferred concerning Freud's psychological views?
A.
Freud tended to be critical of all psychologists who did not support his view of the libido as the sexual drive of fulfillment.
B.
Freud tended to ascribe little importance to the hypothetical elan vital, even questioning its existence.
C.
Freud tended to restrict the notion of the libido to matters of human sexuality, ignoring its broader role as a life drive.
D.
Freud tended to view the libido as a mechanism of the conscious, but not of the collective or personal unconscious.
E.
Freud failed to acknowledge the role of the conflicting desires of the individual in shaping the human libido.
【单选题】Freud mainly analyzes through _____ and talks about human mind.
A.
scientific pattern
B.
dynamic structure
C.
inner emotion
D.
None of the above
【简答题】下面选项中,能够正确创建BasicDataSource对象的代码是()(多选)A. BasicDataSource ds = new BasicDataSource(); B. DataSource ds = new BasicDataSource(); C. BasicDataSource ds = BasicDataSourceFactory.createDataSource(); D. Da...
【单选题】Freud mainly analyzes through _____ and talks about human mind.
A.
scientific pattern
B.
dynamic structure
C.
inner emotion
D.
outer emotion
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