Why doesn’t the woman like swimming in the triathlon?
A. Because she fears that a big fish might eat her.
Because she fears that she would get lost in lakes.
C. Because she doesn’t want to scare away small fishes.
D. Because she doesn’t like swimming with many people.
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Q: What is the most exciting finding about increasingpositive emotions?
A. It improves relationships.
B. It leads to greater success.
C. It helps develop creativity.
D. It contributes to good health.
Q: What does the speaker say about negative feelings?
A. People should turn every negative feeling around.
B. Negative feelings can sometimes have positive effects.
C. Negative feelings often cause people to make mistakes.
D. People should never show negative feelings in public places.
Q: What is the main idea of the passage?
A. People should learn to manage their emotions.
B. People should be patient with their negative feelings.
C. People should learn to analyze causes of unhappiness.
D. People should identify as many positive feelings as possible.
同步电机是指转子转速（）定子旋转磁场转速的电机
A. 等于
B. 大于
C. 小于
D. 不等于
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