皮皮学,免费搜题
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【单选题】
中继器用于网络互联的主要作用是( )
A.
再生信号,扩大网络传输距离
B.
连接不同协议的网络
C.
控制网络中的计算机
D.
提高网络速率
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【简答题】在船员职责分工中三管轮应负责维护管理的设备有______。I、机舱通风机 II、锚机 III、舵机 IV、绞缆机 V、起货机 VI、发电柴油机。A. Ⅰ+Ⅱ+Ⅲ B. Ⅱ+Ⅲ+Ⅳ C. Ⅱ+Ⅳ+Ⅴ D. Ⅳ+Ⅴ+Ⅵ
【判断题】肾上腺素可用于酚妥拉明过量引起的低血压。
A.
正确
B.
错误
【简答题】A) encourage B) grown C) intelce D) altering E) moving F) complex G) existence H) control I) discourage J ) fight K) frontiers L) render M) building N) rival O) further The human brain contains...
【单选题】下列各项中属于外币兑换业务的是
A.
从银行取得外币借款
B.
销售商品发生的外币应收账款
C.
归还外币借款
D.
从银行购入外汇
【简答题】Although many of us may feel air-conditioners bring relief from hot, humid or polluted outside air, they pose many potential health hazards. Much research has looked at how the movement of air inside ...
【单选题】国际收支失衡后需要利用()进行调整。
A.
外汇储备
B.
赤字贬值
C.
储备资产
D.
无形资产
【简答题】Although many of us may feel air-conditioners bring relief from hot, humid or polluted outside air, they pose many potential health hazards. Much research has looked at how the movement of air inside ...
【单选题】If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST _____.
A.
secure the ventilation
B.
find a soda acid extinguisher
C.
shut off the fuel oil supply
D.
secure the generator
【单选题】The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the _____.
A.
flash point
B.
fire point
C.
upper explosive limit
D.
lower explosive limit
【单选题】The diesel engine is a type of internal combustion engine which ignites the fuel by injecting it into hot, high pressure air in a _____.
A.
air bottle
B.
air compressor
C.
crank case
D.
combustion chamber
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