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【判断题】
多媒体系统包括多媒体硬件系统和多媒体软件系统两部分。()A.
正确
B.
错误
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举一反三
【单选题】What is reserve buoyancy?（）.
A.
The amount of buoyancy measured in foot/tons
B.
The vertical distance above the waterline inside the hull
C.
The volune of space that is filled with water
D.
The volume of intact space above the waterline
【单选题】The amount of freeboard affects the ______.① amount of reserve buoyancy of a vessel ② range of stability of a vessel.
A.
① only
B.
② only
C.
Both ① and ②
D.
Neither ① nor ②
【简答题】在锁定图层上双击,然后在弹出的“ ”对话框上点击确定按钮,即可解锁图层。
【单选题】要将【图层】面板中的背景层转变为普通图层,可采用的方法是
A.
在【图层】面板中直接对背景层的名称进行修改
B.
先在背景层图标上双击鼠标，然后在弹出的【新建图层】对话框中修改图层属性
C.
单击背景层上的锁定按钮
D.
单击背景层图标，按Enter键
【单选题】The _______is the point at which a vertical line through the heeled ship’s center of buoyancy intersects with the vertical line through the upright ship’s center of buoyancy.
A.
metacenter
B.
centre of buoyancy
C.
centre of gravity
D.
centre of flotation
【单选题】] What is reserve buoyancy ? ______
A.
The amount of buoyancy measure in foot / tons.
B.
The vertical distance above the waterline inside the hull.
C.
The volume of space that is filled with water.
D.
The volume of intact space above the waterline.
【单选题】The ______is the point at which a vertical line through the heeled ship’s center of buoyancy intersects with the vertical line through the upright the upright ship’s center of buoyancy?
A.
metacenter
B.
center of buoyancy
C.
Center of gravity
D.
center of flotation
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