问题
单项选择题
两个容抗均为5Ω的电容器串联，以下说法正确的是（）。
A.总容抗小于10Ω
B.总容抗等于10Ω
C.总容抗为5Ω
D.总容抗大于10Ω
答案
参考答案：B
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两个容抗均为5Ω的电容器串联，以下说法正确的是（）。
A.总容抗小于10Ω
B.总容抗等于10Ω
C.总容抗为5Ω
D.总容抗大于10Ω
参考答案：B
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| John sent for a doctor because his wife was ill. He called the doctor and made sure they 1 meet at five. He arrived at the doctor's at twenty 2 five. He thought. "It's a little bit earlier. I'll wait for a moment. It's good 3 there on time." 4 he stopped his car in front of the doctor's. He 5 and saw a noisy square (广场) not far from here. He went there and sat down on a chair to enjoy the last light of afternoon sun and 6 himself quiet. He saw some children playing and some women talking to each other happily. Suddenly he 7 a girl crying. He came up to her and asked some questions. Then he knew she got lost. John tried to find out her 8 and took her home. The girl's parents were very thankful. Then John hurried to the doctor's. When the doctor saw him, he was very 9 and said. "You're late. Why did you keep me waiting for twenty minutes?" John said 10 except one word — "Sorry!" | ||||
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