正确答案: A

when

题目：38

解析：A

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举一反三的答案和解析：

[单选题]对水绵的接合生殖方式描述完整的是( )。

梯形接合、侧面接合和直接侧面接合

[单选题]绿藻细胞中的载色体与高等植物叶绿体结构相似。( )

正确

[单选题]

B．Generally C．Afterwards D．Finally

Finally

[单选题]28、“温总理政府工作报告”投资保护主义【试题题干】促进进出口平衡发展，重点扩大先进技术装备、关键零部件和国内紧缺物资进口，稳定各项进口促进政策和便利化措施，敦促发达国家放宽高新技术产品出口限制。一些发达国家出现了主要针对新兴市场和发展中国家的投资保护主义倾向，限制对基础设施、高新技术、能源、金融等领域的投资，甚至把经贸问题政治化。贸易保护主义违背了世界贸易组织的

非歧视原则 B．市场准入原则

解析：

【猜题理由】本题是根据“温总理政府工作报告”的时政热点为背景材料，世界贸易组织的

原则也是高考命题的关键考点，此题具有很强的时代气息。这一知识点设置选择题型，能有效训练解题思路，提高解题技巧。

 

【答案】A

【解析】基础题,由题意很容易得出选项A.

 

[单选题]CAlong the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws (爪) on its wings when young. They build their homes about 4.6m above the river, an important feature (特征) for the safety of the young. It is called the hoatzin. In appearance, the birds of both sexes look very much alike with brown on the back and cream and red on the underside. The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young. Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip. Using these four claws, together with the beak (喙), they can climb about in the bushes, looking very much like primitive birds must have done. When the young hoatzins have learned to fly, they lose their claws. During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.

The appearance and living habits of hoatzins.

[单选题]似亲孢子是指在形态上与母细胞相同的游动孢子。( )

错误