chlorophyll C. sugar D. oxygen 相关知识点: 试题来源: 解析 B。本题考查植物叶子呈绿色的原因。选项 A“water”是水,与叶子绿色无关;选项 C“sugar”是糖,也不是叶子绿色的原因;选项 D“oxygen”是氧气,同样与叶子绿色不相关。而选项 B“chlorophyll”是叶绿素,植物叶子含有叶绿素所以呈绿色。
The leaves of most plants are green because they contain ___. A. chlorophyll B. carbon dioxide C. oxygen D. water 相关知识点: 试题来源: 解析 A。解析:大多数植物的叶子是绿色的是因为含有叶绿素。这是植物学的科学知识。在英语语法上考查名词的认知。A选项chlorophyll是叶绿素;B选项carbon dioxide是二...
百度试题 结果1 题目The leaves of plants are green because they contain ___. A. chlorophyll B. carotenoids C. anthocyanins D. xanthophylls 相关知识点: 试题来源: 解析 A。植物的叶子是绿色因为含有叶绿素。反馈 收藏
The leaves of plants are usually green because they contain ___. A. chlorophyll B. carotene C. xanthophyll D. anthocyanin 相关知识点: 试题来源: 解析 A。解析:植物的叶子通常是绿色因为它们含有叶绿素。B选项胡萝卜素使叶子呈黄色、橙色等;C选项叶黄素也不是使叶子呈绿色的主要物质;D选项花青素使叶子呈...
not green. Plants today are green because 14 use green chlorophyll(叶绿素) to produce energy. _ 15_ these early plants probably used something called retinal(视网膜), which is a dark purple colour.During the time of the Roman Empire, it was very 16 to make purple dye(染料). The dye ...
A. chlorophyll B. carotene C. xanthophyll D. anthocyanin 相关知识点: 试题来源: 解析 A。A 选项“chlorophyll”是叶绿素;B 选项“carotene”是胡萝卜素;C 选项“xanthophyll”是叶黄素;D 选项“anthocyanin”是花青素。植物的绿色来自一种叫做叶绿素的物质,所以选 A。反馈...
百度试题 结果1 题目Chlorophyll gives plants their ___ color. A. red B. blue C. green D. yellow 相关知识点: 试题来源: 解析 C。解析:文中提到 Chlorophyll gives plants their green color.。反馈 收藏
The green color of plants comes from___. A. chlorophyll B. carotenoids C. anthocyanins D. xanthophylls 相关知识点: 试题来源: 解析 A。植物的绿色来自叶绿素,选项 B 胡萝卜素、选项 C 花青素和选项 D 叶黄素都不是植物呈现绿色的原因。反馈
6. The green substance in plants is chlorophyll.The underlined word in the above sentence is close in meaning to ... D A. core D. essence B. body E. material C. stuff 相关知识点: 试题来源: 解析 DJawaban D, kata "substance" bermakna "zat",sehingga kata yang bermakna hampir sama...
The green color of plants is due to ___. A. chlorophyll B. carbon dioxide C. oxygen D. water 相关知识点: 试题来源: 解析 A。植物的绿色是由于叶绿素。选项 B,二氧化碳是无色的。选项 C,氧气是无色的。选项 D,水是无色的。反馈 收藏 ...