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【单选题】
在制图模块中,如何删除一个尺寸标注的附加文本?A.
尺寸标注，在附加文本上右键单击选择删除
B.
点击标准工具条的删除按钮，然后选择附加文本，点击确定
C.
选择附加文本，然后点击标准工具条的删除按钮
D.
尺寸标注，在附加文本上右键单击选择附加文本 -> 清除所有
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【简答题】自我的刻板性,自测分数
【简答题】The climbers _____ their ambition by reaching thesummit of the mountain. A. obtained B. sustained C.maintained D. realized
【单选题】Aortic valve closure can be seen in: ()
A.
at the beginning of rapid ejection phase
B.
at the beginning of rapid filling phase
C.
at the beginning of isovolumic systole
D.
at the beginning of isovolumic diastole
E.
at the beginning of slow filling phase
【简答题】计算下列曲面所围成立体的体积： (1)z=1+x+y，z=0，x+y=1，x=0,y=0 (2)z=x 2 +y 2 ,y=1,z=0,y=x 2
【单选题】A 72-year-old woman dies of congestive heart failure. The aortic valve is examined at autopsy (shown in the image). Which of the following is the most likely cause of aortic stenosis in this patient?
A.
Acute bacterial endocarditis
B.
Aging-related degeneration
C.
Chronic rheumatic valvulitis
D.
Congenital bicuspid valve
E.
Hypertrophic cardiomyopathy
【单选题】方程组 x+y=-1 x+z=0 y+z=1 的解是（ ）
A.
x=-1 y=1 z=0
B.
x=1 y=0 z=-1
C.
x=0 y=1 z=-1
D.
x=-1 y=0 z=1
【简答题】It is sometimes said that strange flying objects have been seen high up in the sky. People call these strange objects Unidentified Flying Objects (UFO). These UFOs caused a lot of interest. Some of th...
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