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已知电路复阻抗Z=3-j4Ω,则该电路一定呈（）

A. 感性
B. 容性
C. 阻性
D. 不一定

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已知一单口网络复阻抗为Z=5+j4 ，该单口网络是（）性质负载

A. 感性
B. 阻性
C. 容性

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Choose the best version:剪纸是中国民间艺术的一种独特形式，已有2000多年历史。

A. 简单句，可译为：Paper cutting is a unique form of folk arts in China, with a history of more than two thousand years.
B. 并列句，可译为：Paper cutting is a unique form of folk arts in China，and has a history of more than two thousand years.
C. 复杂句，可译为：Paper cutting is a unique form of folk arts in China which has a history of more than two thousand years.

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【原文】他们熟练配合,模仿狮子的各种动作。【译文】They cooperate skillfully with each other _________ imitate the various and vivid actions of lions.

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【原文】由于通信网络的快速发展，中国智能手机用户数量近年来以惊人速度增长。这极大地改变了许多人的阅读方式。【译文】Because of the rapid development of communication network, the number of smart phone users in China has increased _ an astonishing rate in recent years, which has significantly changed the way ____.

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已知电路复阻抗Z=3-j4Ω,则该电路一定呈（）

A. 感性 B. 容性 C. 阻性 D. 不一定

已知一单口网络复阻抗为Z=5+j4 ，该单口网络是（ ）性质负载

Choose the best version:剪纸是中国民间艺术的一种独特形式，已有2000多年历史。

【原文】他们熟练配合,模仿狮子的各种动作。【译文】They cooperate skillfully with each other _________ imitate the various and vivid actions of lions.

A. 感性
B. 容性
C. 阻性
D. 不一定

已知一单口网络复阻抗为Z=5+j4 ，该单口网络是（）性质负载