问题
单项选择题
下列哪项是妊娠期间可以诊断器质性心脏病的主要体征
A．心率达120次/分
B．心尖部有Ⅱ级收缩期吹风样杂音
C．心律失常，有期前收缩
D．心尖部有舒张期雷鸣样杂音
E．心界稍向左扩大
答案
参考答案：D
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下列哪项是妊娠期间可以诊断器质性心脏病的主要体征
A．心率达120次/分
B．心尖部有Ⅱ级收缩期吹风样杂音
C．心律失常，有期前收缩
D．心尖部有舒张期雷鸣样杂音
E．心界稍向左扩大
参考答案：D
The summer vacation is the best time for students. They can go outdoors and have fun. They can go to big cities to , or go to the countryside to enjoy the beauty of . Peter is an American middle school student and he loves very much. He always travels in his country. This summer vacation he wants to do . He is interested in Chinese history. he is flying to Beijing and Xi’an for the summer vacation. He is leaving on July 12th and New York on the last day of the month. He plans a fantastic vacation. During the , he is visiting places of interest and going shopping. At night, he is to enjoy the night views. He is sure he will have a time.
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