器质性心脏杂音的特点最不可能有的是
A．部位不定
B．杂音粗糙
C．持续时间长
D．常在3/6级以上
E．常不伴有震颤
参考答案：E
根据首字母及汉语提示，完成下列单词的拼写，使句意明确，语言通顺。
1. Where do your parents l______? -In Hebei.
2. —What l________ does Tom speak?
—French.
3. The park near my home is very (脏)____________, I don't like to go there.
4. I'm very ___________(饥饿的), I want some food to have.
5. She often helps her mother with housework (在……期间) ________ the holidays(假日).
辽朝州县农业人口的主要来源是（）
A、少数民族
B、汉民
C、渤海人
D、以上都是
