问题
单项选择题
孕妇妊娠早期产生尿频症状的原因是
A．增大的子宫压迫膀胱
B．头先露进入盆腔
C．液体摄入量增多
D．盆底肌肉松弛
E．体内肾素—血管紧张素系统分泌紊乱
答案
参考答案：A
解析：解析：妊娠早期，由于增大的子宫压迫膀胱，引起尿频；妊娠末期，由于胎先露进入盆腔，孕妇再次出现尿频，此症状产后可逐渐消失。
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孕妇妊娠早期产生尿频症状的原因是
A．增大的子宫压迫膀胱
B．头先露进入盆腔
C．液体摄入量增多
D．盆底肌肉松弛
E．体内肾素—血管紧张素系统分泌紊乱
参考答案：A
解析：解析：妊娠早期，由于增大的子宫压迫膀胱，引起尿频；妊娠末期，由于胎先露进入盆腔，孕妇再次出现尿频，此症状产后可逐渐消失。
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| Jim went to school to study history, but when he 1 his first year, he didn't pass the exam and his teacher said 2 him, "You have to 3 school." When the boy's father heard this news, he was very worried. He came to the school to see the 4 . He asked the teacher to let Jim go 5 with his study the next year. "He is a good boy. He always 6 well in history!" said Jim's father. "And if you let him pass the exam this time, he'll do 7 next year and pass the exam!" "No, no, that's impossible (不可能的)!" answered the teacher. " 8 I asked him when Napoleon died but he didn't know!" "Please sir, give him 9 chance (机会)," said Jim's father. "We don't have any newspapers in our house, so 10 in our family knew that Mr. Napoleon was ill!" | ||||
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