皮皮学，免费搜题
登录
搜题
【简答题】
辐射差额是指物体辐射能收入与支出的差值。差额为正时，物体有热量盈余，温度将升高；反之，则温度降低；若收支相等，则称为辐射平衡。地——气系统的辐射收入部分是地面和大气吸收的太阳辐射；支出部分为辐射到宇宙空间去的地面辐射和大气的长波辐射。读图回答1—3题。 1．有关全球地——气系统年辐射差额的描述正确的是 [ ] A．由沿海到内陆递减 B．由低纬向递增 C．随海拔的递增而递减 D．全球地——气系统热量收支平衡 2．沙漠地区年辐射差额往往呈负值的原因是 [ ] A．太阳辐射总量大于其他地区 B．海拔高，大气稀薄，保温作用差 C．地面辐射强且地面反射率高 D．远离海洋，年降水量少 3．江汉平原辐射差额为负值，而青藏高原为正值，其主要原因是 [ ] A．江汉平原海拔低于青藏高原 B．江汉平原冬季受冬季风影响强烈 C．江汉平原地面辐射强 D．江汉平原气温低于青藏高原
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】As it turned out to be a small house party, we ______ so formally. A) needn't dress up B) did not need have dressed up C) did not need dress up D) needn't have dressed ...
【简答题】根据句意，首字母及中文提示写单词。 1. Many v_______ visit the museum every year. 2. A serious accident h_______ yesterday. 3. Our teachers are always w_______ to help us with our study. 4. The baby was f_______ of ...
【简答题】如果按照书写方向来划分,笔画的类型只有5种,它们分别是横、竖、( )、捺、折。
【简答题】A．The speakers will dress formally for the concert. B．The man will return home before going to the concert. C．It is the first time the speakers are attending a concert. D．The woman is going to buy a n...
【简答题】As it turned out to be a small party, we ______ so formally. A) needn't dress up B) did not need have dressed up C) did not need dress up D) needn't have dressed up
【单选题】In paragraph 3 ' dressing up on a budget' probably means 'to ______ '.
A.
dress formally when there is enough money
B.
dress well with the limited available money
C.
try to save money to enjoy expensive clothes
D.
set aside certain amount of money for fancy dresses
【简答题】刘鸿生先生说过:“吾甬人以冒险之天性,斩荆披棘,经营所业,其间筚路褴褛,艰苦卓绝......”,后人在概括了宁波帮人文精神时,用了7个词语。请说出其中的4个词。
【简答题】固定花材的用具有哪些?有何作用?
相关题目：