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【单选题】
下面应用软件用于音频编辑的是( )。A.
Adobe Photoshop CS4
B.
Adobe Fireworks CS4
C.
Adobe Audition 3.0
D.
Adobe Premiere Pro CS4
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反馈参考答案：
举一反三
【单选题】A vector A has components A x = 12.0 m and A y = 5.00 m. What is the angle that vector A makes with the x - axis?
A.
12.6°
B.
22.6°
C.
32.6°
D.
67.4°
【单选题】The teacher asked her,"Does the sun rise in the east?" The teachet asked her ___ the sun ___ in the east.
A.
if; rise
B.
if; rises
C.
whether; rose
D.
whether did; rise
【简答题】The three-dimensional vector r , which has positive components, has magnitude 1 and makes angles of with each of the unit vectors i and j . The angle between r and the unit vector k is ° .
【单选题】A vector A has components A x = 12 m and A y = 5.0 m. What is the magnitude of vector A ?
A.
7.0 m
B.
13 m
C.
17 m
D.
60 m
【单选题】对于importjava.util.Vector，以下哪种说法是错误的?
A.
Vector类属于java.util包
B.
Vector类放在……/java/util/目录下
C.
Vector类放在java.util文件中
D.
Vector类是SUN公司的产品
【单选题】Which best defines the normal vector
A.
A vector that is perpendicular to the surface at a given point
B.
A vector that is parallel to the tangent plane at a given point
C.
A vector that lie in the tangent plane but perpendicular to the viewing direction
D.
A vector that is always perpendicular to the viewing direction
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