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高压侧为单电源，低压侧无电源的降压变压器，装设专门的零序保护。()

A. 正确
B. 错误

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继电保护、自动装置、控制、信号的二次回路线路中的操作回路，在最大负荷下，操作母线至设备的电压降，不应超过额定电压的10%。()

A. 正确
B. 错误

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Section B
Directions: This section is to test your ability to understand short conversations. There are 2 recorded conversations in it. After each conversation, there are some recorded questions. The conversations and the questions will be spoken only once. When you hear a question, you should choose the correct answer from the 4 choices marked A, B, C, and D.
听力原文： Once a blind man, being stopped in a bad road, met a lame man, and asked him to help him out of the difficulty into which he had fallen.
"How can I." replied the lame man "since I can hardly drag myself along？ I am lame, and you look to be strong."
"I am strong enough," said the other. "I could go if I could but see the way."
"Oh, then we may help one another," said the lame man. "If you will take me on your shoulders, we will seek our fortunes together. I will be eyes for you, and you shall be feet for me."
"With all my heart." said the blind man. "Let's help each other."
So the blind man took the lame man upon his back, and they traveled on with safety and pleasure.
6. What is the main idea about the article？
(6)

A blind man and a lame man.
B. A blind touches the elephant.
C. An early bird can get the worm.
D. The disable people should help each other.

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继电保护、自动装置、控制、信号的二次回路在可能出现操作过电压的二次回路内，应采取降低操作过电压的措施。()

A. 正确
B. 错误

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听力原文：At last, how did they travel on？
(7)

A. The lame man took the blind man on his shoulders.
B. The blind man took the lame man on his shoulders.
C. They moved on shoulder by shoulder.
D. They marched on separately.

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高压侧为单电源，低压侧无电源的降压变压器，装设专门的零序保护。()

A. 正确 B. 错误

继电保护、自动装置、控制、信号的二次回路线路中的操作回路，在最大负荷下，操作母线至设备的电压降，不应超过额定电压的10%。()

继电保护、自动装置、控制、信号的二次回路在可能出现操作过电压的二次回路内，应采取降低操作过电压的措施。()

听力原文：At last, how did they travel on？(7)

A. 正确
B. 错误

听力原文：At last, how did they travel on？
(7)