正确答案: B

错误

题目：两体雄蕊就是10枚雄蕊中9枚合生，1枚单独着生。( )

解析：B

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举一反三的答案和解析：

[单选题]The best title for the text would be___________.

The History of Olivetti

[单选题]为鉴定一株高茎豌豆和一只黑色豚鼠的纯合与否，应采用的最简便遗传方法分别是

自交、测交

[单选题]下列对原文有关内容的赏析，不正确的一项是

本文用老子之言，说明五色、五音、五味、田猎等可使人得到感官上的享受，但不能沉溺其中。圣人并未废此四者，也未“发狂”，就是这个道理。

[单选题]阅读文章回答第69~72题D Andrew Ritchie, inventor of the Brompton folding bicycle, once said that the perfect portable bike would be “like a magic carpet…You could fold it up and put it into your pocket or handbag”. Then he paused: “But you’ll always be limited by the size of the wheels. And so far no one has invented a folding wheel.”It was a rare — indeed unique — occasion when I was able to put Ritchie right. A 19th-century inventor, William Henry James Grout, did in fact design a folding wheel. His bike, predictably named the Grout Portable, had a frame. that split into two and a larger wheel that could be separated into four pieces. All the bits fitted into Grout’s Wonderful Bag, a leather case.

was portable

[单选题]人可以避免“青蛙效应”在于能居安思危，并因“思所以危”而“安”，其哲学道理是

①认识“危”的条件、根源和前景是实现“安”的必要前提 ②认识“危”的必然性，则可以安之若素、泰然处之 ③认识“安”与“危”的依存、贯通关系，顺应和迎接安危转化的趋势 ④认识“安”与“危”的包含、转化关系，努力实现转危为安的趋安避危

①④

[单选题]瓶耳小草是一种单子叶植物。( )

错误