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【单选题】
1825 年,( )修建了世界上第一条铁路。
A.
美国
B.
法国
C.
英国
D.
德国
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【单选题】When fighting a fire with a portable dry chemical fire extinguisher，the stream should be directed（）.
A.
over the top of the flames
B.
off a bulkhead into the fire
C.
in front of the fire
D.
at the base of the fire
查看完整题目与答案
【单选题】When fighting a large fire on your vessel and attacking it from ABOVE the space on fire，it is important to ______．
A.
Rotate personnel，due to heat stress
B.
Station personnel on the hot deck immediately above the fire
C.
Stay low by crouching or kneeling on deck
D.
All of the above
查看完整题目与答案
【单选题】3月1日，6月大豆合约价格为8390美分／蒲式耳，9月大豆合约价格为8200美分／蒲式耳。某投资者预计大豆价格要下降，于是该投资者以此价格卖出1手6月大豆合约，同时买入1手9月大豆合约。到5月份，大豆合约价格果然下降。当价差（）美分／蒲式耳时该投资者将两合约同时平仓能够保证盈利。
A.
小于等于-190
B.
等于-190
C.
小于190
D.
大于190
查看完整题目与答案
【单选题】Ship fire-fighting organization includes _____.
A.
general alarm and fire control plans
B.
muster stations and duties of individual
C.
patrol system
D.
All of the above
查看完整题目与答案
【单选题】What is the tour for today mainly about?
A.
Urban fire fighting.
B.
American fire fighting innovations.
C.
The history of fire.
D.
The Great San Francisco Fire fighting.
查看完整题目与答案
【单选题】. 教师职业倦怠的不良影响不包括 ( )。
A.
. 教学效果下降
B.
. 人际关系紧张
C.
. 学校陷入混乱
D.
. 造成自我身心伤害
查看完整题目与答案
【单选题】请问以下效果是用什么蒙版做出的?
A.
快速蒙版
B.
图层蒙版
C.
剪贴蒙版
D.
矢量蒙版
查看完整题目与答案
【单选题】I require fire fighting assistance
A.
Fire fighting assistance is needed
B.
Breathing apparatus is needed
C.
Foam extinguishers are needed
D.
Medical assistance is needed
查看完整题目与答案
【单选题】A foam-type portable fire extinguisher is most useful in fighting a fire in ______.
A.
generators
B.
oil drums
C.
the bridge controls
D.
combustible metals
查看完整题目与答案
【单选题】The basic training in fire prevention and fire fighting should include the theoretical elements which should cover _____.
A.
the three elements of fire and explosion
B.
lower and upper flammable limits
C.
classification of flies and applicable extinguishing agents
D.
All of the above
查看完整题目与答案
相关题目：
【单选题】When fighting a fire with a portable dry chemical fire extinguisher，the stream should be directed（）.
A.
over the top of the flames
B.
off a bulkhead into the fire
C.
in front of the fire
D.
at the base of the fire
查看完整题目与答案
【单选题】When fighting a large fire on your vessel and attacking it from ABOVE the space on fire，it is important to ______．
A.
Rotate personnel，due to heat stress
B.
Station personnel on the hot deck immediately above the fire
C.
Stay low by crouching or kneeling on deck
D.
All of the above
查看完整题目与答案
【单选题】3月1日，6月大豆合约价格为8390美分／蒲式耳，9月大豆合约价格为8200美分／蒲式耳。某投资者预计大豆价格要下降，于是该投资者以此价格卖出1手6月大豆合约，同时买入1手9月大豆合约。到5月份，大豆合约价格果然下降。当价差（）美分／蒲式耳时该投资者将两合约同时平仓能够保证盈利。
A.
小于等于-190
B.
等于-190
C.
小于190
D.
大于190
查看完整题目与答案
【单选题】Ship fire-fighting organization includes _____.
A.
general alarm and fire control plans
B.
muster stations and duties of individual
C.
patrol system
D.
All of the above
查看完整题目与答案
【单选题】What is the tour for today mainly about?
A.
Urban fire fighting.
B.
American fire fighting innovations.
C.
The history of fire.
D.
The Great San Francisco Fire fighting.
查看完整题目与答案
【单选题】. 教师职业倦怠的不良影响不包括 ( )。
A.
. 教学效果下降
B.
. 人际关系紧张
C.
. 学校陷入混乱
D.
. 造成自我身心伤害
查看完整题目与答案
【单选题】请问以下效果是用什么蒙版做出的?
A.
快速蒙版
B.
图层蒙版
C.
剪贴蒙版
D.
矢量蒙版
查看完整题目与答案
【单选题】I require fire fighting assistance
A.
Fire fighting assistance is needed
B.
Breathing apparatus is needed
C.
Foam extinguishers are needed
D.
Medical assistance is needed
查看完整题目与答案
【单选题】A foam-type portable fire extinguisher is most useful in fighting a fire in ______.
A.
generators
B.
oil drums
C.
the bridge controls
D.
combustible metals
查看完整题目与答案
【单选题】The basic training in fire prevention and fire fighting should include the theoretical elements which should cover _____.
A.
the three elements of fire and explosion
B.
lower and upper flammable limits
C.
classification of flies and applicable extinguishing agents
D.
All of the above
查看完整题目与答案