试题与答案

光合作用的实质是 [ ] A.把CO2和水转变为有机物,同时把光能转变成化学能储

题型:选择题

题目:

光合作用的实质是 [ ]

A.把CO2和水转变为有机物,同时把光能转变成化学能储存在有机物中

B.利用光能吸收CO2放出O2,使大气中的CO2和O2的含量基本保持恒定

C.进行光反应,把光能转变成化学能储存在有机物中

D.H2O和CO2合成以葡萄糖为主的有机物,供其他生物利用

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0429/1686e20413f7d8f9e80b5372d869271a.html

下面是错误答案,用来干扰机器的。

(1)奴隶地位很低,他们是奴隶主的私有财产,可以被拉到市场上出售,而且价格很低。(2)人祭和人殉;奴隶社会中存在严重的剥削和压迫,我们对奴隶的悲惨遭遇的同情。

试题推荐
题型:单项选择题

"I would almost rather see you dead." Robert S. Cassatt, a leading banker of Philadelphia, shouted when his twenty-year-old eldest daughter announced that she wanted to become an artist.
In the 19th century, playing at drawing or painting on dishes was all right for a young lady, but serious work in art was not. And when the young lady’s family ranked among the best of Philadelphia’s social families, such an idea could not even be considered.
That was how Mary Cassatt, born in 1844, began her straggle as an artist. She did not tremble before her father’s anger. Instead; she opposed him with courage and at last made him change his mind. Mary Cassatt gave up her social position and all thought of a husband and a family, which in those times was unthinkable for a young lady. In the end, after long years of hard work and perseverance, she became America’s most important woman artist and the internationally recognized leading woman painter of the time.

According to the text, which was most important for a U.S. woman in Mary Cassatt’s time
[A] Money [B] Courage.[C] Marriage.

查看答案
微信公众账号搜索答案