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【单选题】
对于超过1000总吨的货船,所需要的消防数目应为每______米船长配备1条,1条备用,但总数不得少于5条,此数目并不包括机炉舱所需要的。
A.
10
B.
20
C.
30
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【单选题】What is the direct labor efficiency variance?
A.
$2,352 F
B.
$2,352 U
C.
$4,320 F
D.
$4,320 U
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【单选题】What is said to be the best way to conserve energy nowadays？
A.
Raising efficiency.
B.
Cutting unnecessary costs.
C.
Finding alternative resources.
D.
Sacrificing some personal comforts.
查看完整题目与答案
【单选题】中央处理器CPU的主要功能是（）
A.
分析并执行指令
B.
计算数据
C.
存储数据
D.
输出数据
查看完整题目与答案
【单选题】What is the best title of this passage?
A.
Less stress, more efficiency.
B.
Attitudes decide everything.
C.
Communication bridges the gap.
D.
You are what you think.
查看完整题目与答案
【单选题】what is the labour efficiency variance?
A.
a
B.
b
C.
c
D.
d
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【单选题】What is the “conversion efficiency” mean?
A.
转换效率
B.
逆变器
C.
开路电压
D.
短路电流
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【单选题】A 240-V DC motor(直流马达) draws 6A and develops an output power of 1.6hp. (1 hp=746 W) (a) What is its efficiency? (b) How much the power is wasted?
A.
(a) 82.9% (b) 189 W
B.
(a) 84.9% (b) 246 W
C.
(a) 82.9% (b) 246 W
D.
(a)72.9% (b) 226 W
查看完整题目与答案
【单选题】中央处理器CPU的主要功能是()?
A.
存储信息
B.
运算和控制
C.
显示信息
D.
加工信息
查看完整题目与答案
【单选题】According to the passage, what is the purpose of training?
A.
To improve employee efficiency
B.
To spend excess capital
C.
To satisfy government requirements
D.
To please a supervisor
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【判断题】旅客携带中药材,中成药出境,前往国外的,总值限人民币500 元。P304
A.
正确
B.
错误
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【单选题】What is the direct labor efficiency variance?
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【单选题】What is said to be the best way to conserve energy nowadays？
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【单选题】A 240-V DC motor(直流马达) draws 6A and develops an output power of 1.6hp. (1 hp=746 W) (a) What is its efficiency? (b) How much the power is wasted?
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查看完整题目与答案
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