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支气管扩张咳痰以下正确的

A. 黄绿色、脓性痰,静止后可以分层
B. 铁锈色痰
C. 砖红色痰
D. 粉红色泡沫痰

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肺水肿患者咳痰以下正确的

A. 黄绿色、脓性痰
B. 铁锈色痰
C. 砖红色痰
D. 粉红色泡沫痰

The red colour of the National Flag of the PRC symbolisesand the yellow colour of the stars the golden brilliant rays radiating from the vast red land. The design of four smaller stars surrounding a bigger one signifiesunder the leadership of.

China is a country of varied topographical features within the west andin the east. Mountainous land and very rough terrains make up about 67% of Chinese territory,about 33%.

The first primitive man known to have existed in China is, who lived about 1.7 million years ago.,who existed more than 600,000 years ago at Zhoukoudian, in the vicinity of modern Beijing, could walk upright, make and use simple tools, and make use of

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