百度试题 结果1 题目As the warm air rises, cooler air replace it(takes its place). 相关知识点: 试题来源: 解析 热空气上升时,冷空气便占据它的位置。 反馈 收藏
As warm air rises,it mixes with cooler air above and cools to a point___it stops rising. 相关知识点: 试题来源: 解析 where 答案:where.单词填空.句意:当热空气上升时,它与上面较冷的空气混合,冷却到停止上升的程度.本句是定语从句,先行词是point,在定语从句中做状语,所以填where.当热空气上升...
只要翻译As air rises it becomes cooler because it expands and is less concentrated.就行,还有这句中的as是什么意思 答案 as是“随着……”的意思 连接时间状语从句.“逐渐上升的空气由于体积膨胀、密度变小而逐渐降温冷却.”解析 暂无解析 扫码下载文库App 免费查看千万试题教辅资源...
Or a time may come whenclouds will form but no rain will fall.We can get back rain by cleaning up the 答案 【解析】【第1空】environment 相关推荐 1(12分)阅读理解As we know, when the air warms up and rises, it has water vapor(水蒸气) in it. When the vapor hits particles of ...
SUZANNE LYNCH
Warm air rises. As it rises, it coolsdown and becomes clouds. This makes it difficultfor the air to hold water vapour (水蒸气). When theair gets cold, the water vapour becomes small dropsof water. Sometimes when it is very cold, the watervapour makes ice crystals (冰晶).Some clouds ...
根据下文提到的Warm air therefore takes up more space than the same amount of cold air.因此温暖的空气比同等数量的冷空气占据更多的空间。故得知句意:随着气球里面空气的加热,它开始膨胀。所以划线单词的意思是膨胀,故选B。 根据文章提到的The molecules(分子) begin to move faster and further apart form ...
百度试题 结果1 题目 思What do you know about resources?Rising air makes clouds. Warm air rises. As li rises it cools down and becomes clouds. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
单项选择题 Clean air standards referred to as “Grade D” apply to compressed air for use in(). A.high pressure fluid accumulators B.driving air-powered plunger pumps C.filling open-circuit breathing systems D.bladder-type accumulators
When they breathe out, they think that bad things go out of the body with the air. Scientists do not spend much time studying yawning. That is probably because yawning does not hurt. It is just something we do.1. What does the underlined word “contagious” in Paragraph 2 mean? A....