由两种或多种物质混合而成的物质叫_______。只有一种物质组成的物质叫____

题型:填空题

问题:

由两种或多种物质混合而成的物质叫_______。只有一种物质组成的物质叫____。

考点:纯净物和混合物
题型:填空题

阅读对话,根据横线后所给标点符号的提示,在横线上填写适当的句子,使对话完整。

A: Good morning, Sue. Did you enjoy your holiday in the country?

B: Yes,小题1: ________.  And some friends went with us.

A: Where did you stay?

B: In a hotel. And we could enjoy the beautiful scenery from the window.

A:小题2:________. What was the weather like?     

B: The sun shone nearly every day and it didn’t rain at all.

A: Did you like the people there?

B: Yes, they were great. We met some farmers and had some food in their houses.小题3:________? Did you have a good weekend?      

A: Yes. But I just stayed at home.

题型:填空题

Application对象

题型:填空题

椎间盘病变的解剖基础有()

A.后纵韧带在腰椎变窄

B.腰椎生理前凸,前厚后薄

C.腰骶椎承受力最大

D.以上均是

题型:填空题

发行公司债权的条件

题型:填空题

久治不愈或突然变硬,生长迅速,可转化为石瘿的瘿病为()。

A.气瘿

B.肉瘿

C.瘿痈

D.石瘿

E.筋瘿

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