皮皮学，免费搜题
登录
搜题
【简答题】
叶绿素分子含有一个由______组成的的“头部”和一个含有由______(三个字)组成的“尾巴”。叶绿素分子的______端为亲,______端为亲脂端。通常用含有少量水的有机溶剂如80%的______或95%______来提取叶片中的叶绿素。
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】At a lower level of comprehension, readers tend to ________. A) read a text slowly B) read without thinking hard C) interpret a text in their own way D) concentrate on the meaning of words only
【简答题】A．Read a text slowly. B．Read without thinking hard. C．Interpret a text in their own way. D．Concentrate on the meaning of words only.
【单选题】地图上的每条等高线都是实地等高线的水平投影,它既描绘出地貌的平面轮廓,也表示出地貌的起伏。在同一幅地图上或同一等高距条件下,等高线多,山就(),等高线少,山就越低,等高线间隔小,实地坡度();等高线间隔大,实地坡度( )。
A.
越高 越陡 越平稳
B.
越高 越平稳 越陡
C.
越陡 越高 越平稳
D.
以上都不是
【简答题】地图上的每条等高线都是实地等高线的水平投影，它既描绘出地貌的平面轮廓，也表示出地貌的起伏。在同一幅地图上或同一等高距条件下，等高线多，山就（），等高线少，山就（），等高线间隔小，实地坡度（）；等高线间隔大，实地坡度（）。
【简答题】You don't have to read every text in the same way. The way you read a text d____1____ on your reason for reading it.To____ 2____ some questions,you don't need to read every word of the passages.Just g...
【单选题】地图上的每条等高线都是实地等高线的水平投影,它既描绘出地貌的平面轮廓,也表示出地貌的起伏。在同一幅地图上或同一等高距条件下,等高线多,山就(),等高线少,山就越低,等高线间隔小,实地坡度();等高线间隔大,实地坡度( )
A.
越高越陡越平稳
B.
越高越平稳越陡
C.
越陡越高越平稳
【单选题】It can be inferred from the text that__________ ．
A.
Lincoln prepared his speech very carefully before he went to Gettysburg
B.
Lincoln was very busy at the time and didn’t have much time to prepare his speech
C.
Lincoln’S speech was full of‘rich words
D.
Lincoln’speech was very long
相关题目：