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【单选题】
对温度敏感的物质，最适合采用的干燥方法是A.
常压干燥
B.
减压干燥
C.
喷雾干燥
D.
冷冻干燥
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【简答题】根据首字母及句意完成单词. 1. Liu Xiang is a r star. 2. I have a h body(身体),so I`m very strong. 3. Tom has chicken, tomatoes and carots for d 4. Do you like d ?Yes, I like ice cream very much.
【简答题】“天气是指一个地方多年的大气状况，它具有相对稳定性。我们经常用阴晴、气温高低、风力大小等语言来描述天气状况。”读材料，完成下列各题。 小题1:上面关于天气概念的叙述中，存在几处错误 A．1处 B．2处 C．3处 D．4处 小题2:下列选项中，哪一项是描述天气的 A．夜来风雨声，花落知多少 B．非洲撒哈拉沙漠终年炎热干燥 C．昆明四季如春 D．北京冬冷夏热，降水集中夏秋
【单选题】----- Why do you think Liu Xiang is one of the best sportsman? ----- ______, he is the world record holder in men’s 110m hurdles, which is considered to be a big progress for Chinese athletes.
A.
For the first time
B.
Believe it or not
C.
To give an example
D.
To tell the truth
【简答题】根据首字母或汉语提示写单词。 1. Liu Xiang is a famous(著名的) r_____in the world(世界). 2. The movie star(电影明星)likes apples for b_____. 3. What do you like for_____(甜食) ? 4. Do you like_____(胡萝卜)? 5. Tomatoes aren't fru...
【简答题】设A={1,2,3}，B={1,3,5}，C={2,4,6}，求： (1)A∪B (2)A∩B (3)A∪B∪C (4)A∩B∩C (5)A-B
【简答题】根据句意及首字母提示补全单词. 1.Let's c_______ Liu Xiang on. 2.Work hard, and your f_______ is not a dream. 3.Things are looking p_______ good. 4.The Big Big World is a very p_______ song. 5.My grandma is old. Ther...
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