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【单选题】
透平机与往复压缩机系统中跳闸栓的作用为A.
当透平机转速过低时跳闸，切断主蒸汽
B.
当透平机超速时跳闸，切断主蒸汽
C.
当透平机超速时跳闸，切断电源
D.
当透平机转速超低时跳闸，切断电源
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举一反三
【简答题】Dear Mr.Black: We are a mid-sized accounting firm. Our staff members are not happy with our current insurance plan, so we are looking into other alternatives. The insurance company we use now has rec...
【简答题】Another hero from the __1__ in Tuscon was Dory Stoddard. Dory gave his life for his wife, Mavy. Dory and his wife had been friends since childhood and when Dory heard shots __2__ he immediately fell o...
【简答题】The fishermen caught Dory in their net. Dory ____.
【简答题】Dear Mr. Black: We are a mid-sized accounting firm. Our staff members are not happy with our current insurance plan, so we are looking into other alternatives. The insurance company we use now has rec...
【判断题】Dory died in the mass shooting but it seemed that he still lived eternally as a hero because of his spirit.
A.
正确
B.
错误
【单选题】Long known for his remarkable _________精神 and love of humanity, Dory Stoddard died as he had always lived, assisting others.
A.
spring
B.
spirit
C.
spin
D.
spread
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