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【单选题】
再热机组在各级回热分配上，一般采用增大高压缸排汽的抽汽量，降低再热后第一级回热的抽汽量是为了（）A.
减少给水加热过程是的不可逆损失
B.
尽量利用高压缸排汽进行加热
C.
保证再热后各加热器安全
D.
增加再热器后各级回热抽汽的抽汽作功量
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举一反三
【单选题】In the sentence “Do not leave your money in a piggy bank or under your mattress”, the phrase “piggy bank” means ( ).
A.
a relatively small bank
B.
a relatively infamous bank
C.
a small container that is used for saving money
【判断题】The phrase "in a position to do sth" means "be able to do something because you do not have the ability, money or power to do it.
A.
正确
B.
错误
【单选题】Secondly ,do not stop ________you come to a word or a phrase you do not know. [ ]
A.
for the first time
B.
because
C.
every time
D.
since
【多选题】动态路由协议按照协议算法分为距离矢量算法路由协议和链路状态算法路由协议两种。下列路由协议中，属于链路状态算法路由协议的是( )?
A.
RIP
B.
IS-IS
C.
BGP
D.
OSPF
【简答题】Have you ever heard someone use the phrase” once in a blue moon”? People use this expression to describe something that they do not do very often. For example, someone might say that he tries to avoid...
【单选题】which phrase has the similar meaning to "to make a person do something that they do not want to do?"
A.
allow sb to do sth
B.
refuse sb to do sth
C.
force sb to do sth
D.
remind sb to do sth
【单选题】The phrase 〝 Do not hang up〞 in the dialogue means 〝______〞
A.
stay on the line
B.
receive a phone call
C.
do not hold on
D.
put a telephone receiver back
【单选题】The phrase “Do not hang up” in the dialogue means “______”.
A.
Stay on the line
B.
end a phone call
C.
Do not hold on
D.
put a telephone back
【单选题】关于 RIP 和 OSPF 路由选择协议正确的是____。
A.
RIP 和 OSPF 都适用于大型到特大型、多路径的动态的 IP 互联网环境
B.
OSPF 适用于小型到中型的、多路径的、动态的 IP 互联网环境
C.
RIP 用于小型到中型的多路径的、动态的 IP 互联网环境
D.
OSPF 和 TIP 都适合在规模小的、静态的互联网上使用
相关题目：
【多选题】动态路由协议按照协议算法分为距离矢量算法路由协议和链路状态算法路由协议两种。下列路由协议中，属于链路状态算法路由协议的是( )?
A.
RIP
B.
IS-IS
C.
BGP
D.
OSPF
参考解析：
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