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【单选题】
肺循环血流量增多,而左心室.主动脉及体循环血流量减少的先天性心脏病为()
A.
动脉导管未闭
B.
室间隔缺损
C.
房间隔缺损
D.
法洛四联征
E.
肺动脉瓣狭窄
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参考答案:
举一反三
【单选题】平行双曲柄机构,当主动曲柄作匀速转动时,从动曲柄将()
A.
匀速转动
B.
间歇转动
C.
周期性变速转动
D.
往复摆动
【单选题】平行双曲柄机构,当主动曲柄作匀速转动时,从动曲柄作 () 。
A.
匀速转动
B.
间歇转动
C.
周期性变速转动
D.
往复摆动
【单选题】目标特点是层次性、多样性、( )和长短期目标相协调的整体。
A.
稳定性
B.
网络性
C.
复杂性
D.
客观性
【简答题】Confucius is one of a handful of individuals who has shaped world history. Confucius as born into an ________ but impoverished family.
【判断题】平声的特点是“长而缓”,仄声的特点是“短而促”,平仄相间,声调抑扬顿挫,听起来会比较悦耳。
A.
正确
B.
错误
【单选题】Which of the following statements is NOT true about Confucius?
A.
Confucius has “ 桃李满天下 ”. It is said that he had trained 3000 students, of whom 72 were eminent
B.
Confucius is a great thinker and educator
C.
Confucius planted plum trees and peach trees everywhere
【单选题】Kong Tzu has the particular English name Confucius because __________.
A.
he is the most famous thinker in China
B.
Latin name is easier for westerners to remember
C.
he is the master and would like to confuse others
D.
he sometimes felt confused
【判断题】工件的装夹不会影响零件的尺寸精度
A.
正确
B.
错误
【多选题】以下选项属于音频格式的是______。
A.
JPEG
B.
MP3
C.
BMP
D.
GIF
E.
WAV
【单选题】平行双曲柄机构,当主动曲柄作匀速转动时,从动曲柄将作(    )。
A.
匀速转动    
B.
间歇转动    
C.
周期变速转动    
D.
往复摆动
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