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【单选题】
关于下面过渡transition属性说法错误的是。（ ）A.
transition-property 表示动画的属性名称
B.
transition-duration 表示动画持续的时间
C.
transition-delay 表示动画的开始时间，不可以为负值
D.
可以使用 transition综合属性设置过渡效果
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【简答题】请计算,整流滤波电路中,估算的输入与输出电压之间的比值。
【单选题】【单选】What is the main purpose of dunnage?
A.
To act as ballast for light vessels
B.
To provide ventilation and drainage for cargo
C.
To secure the tarpaulins in place
D.
To support weakened bulkheads
【单选题】S1:Have you laid the dunnage as instructed?S2:I think so.S1:What have you done with the bilges?S2:The bilges have been covered with planks.S1:Where did you find the dunnage planks? The planks you use ...
A.
It should be laid with one layer of dunnage.
B.
It should be laid with two layer of dunnage.
C.
It should be laid with one layer of mats.
D.
It should be laid with two layer of dunnage.
【多选题】垄断资本的实质在于获取垄断利润，垄断利润是______
A.
垄断资本家凭借垄断地位而获得的利润
B.
超过平均利润的高额利润
C.
垄断资本所有权在经济上的实现
D.
有利于资本在各部门之间的自由转移
【单选题】What is dunnage?
A.
a slang term for a particular type of ocean liner
B.
a type of packaging material that is placed inside of boxes
C.
material that is used to block and brace products inside carrier equipment
D.
additional transportation fees that are charged to small shippers
【单选题】What is the main purpose of dunnage?
A.
to act as ballast for light vessels
B.
to provide ventilation and drainage for cargo
C.
to secure the tarpaulins in place
D.
to support weakened bulkhead
【单选题】What is the main purpose of dunnage? ___ .
A.
To act as ballast for light vessels
B.
To provide ventilation and drainage for cargo
C.
To secure the tarpaulins in place
D.
To support weakened bulkheads
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