关于牛体外受精及胚胎的工厂化生产的叙述正确的是 [ ] A.精子和卵细胞受精形成

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问题:

关于牛体外受精及胚胎的工厂化生产的叙述正确的是 [ ]

A.精子和卵细胞受精形成受精卵后即可移入母牛子宫

B.采集的卵母细胞应立即与精子共同放入培养液才能形成受精卵

C.成熟的卵细胞与收集来的精子相遇形成受精卵,需培养到一定阶段才可移植

D.体外受精胚胎的工厂化生产即胚胎发育和受精过程只需在体外进行

考点:体外受精和早期胚胎培养
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地面上的绝缘油着火,应用二氧化碳灭火器进行灭火。

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在平面直角坐标系XOY中,点p(x,y)是椭圆
x2
a2
+
y2
b2
=1
(a>b>0)上的一个动点,则bx+ay的最大值为 ______.
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成人躯干烧伤,伤及真皮层,其烧伤严重性分度为()

A.轻度

B.中度

C.重度

D.Ⅱ°

E.Ⅲ°

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When it comes to hard, noisy traveling, we’ve found that sometimes we’d rather read about it than actually go. Here are some bestsellers for armchair travelers.

The Station by Robert Byron. In 1928, the 22-year-old man made a journey to Mount Athos, resulting in one of the best travel books ever written, matched only by Byron’s own, much more famous The Road to Osciana.

In Darkest Africa by Henry Monton Stanley. It’s about his great efforts to save an unlucky German doctor Eduard Schnitzer, who had no desire to be rescued at all.

A Traveler’s Alphabet: Partial Memoirs by Sir Steven Runciman. A to Z and around the world. He provides priceless information of long-gone princesses, priests, and places.

South: A Memoir of the Endurance Voyage by Sir Ernest Shackleton. As the planet started the global war, Shackleton and his brave group of explorers made an unsuccessful but heroic journey to cross Antarctica from 1914 to 1917.

The Michelin Red Guide: France 2005 Reading through this final listing of all the nice hotels and wonderful restaurants in France is better than going there, listening to Chirac talk about the poisonous American culture, and spending the price of this book for a tiny cup of tea and a cookie the size of your thumb.

The Past Is a Foreign Country by David Lowenthal. This great book of an armchair exploration tells us what has happened in the past and shows the relationship between us and the past travelers.

小题1:This passage is written            .

A. to warn readers against traveling     

B. as an introduction to famous travelers

C to sell more books about travels

D. to tell people where to travel

小题2:The underlined phrase “armchair travelers” in the first paragraph refers to those who                .

A.like to read about travels instead of travel themselves

B.find fun teaching others how to travel to other places

C.like to write about their strange traveling experiences

D.can only travel with special equipment for the disabled小题3: which of the books has a very low price according to the passage?

A.A Traveler’s Alphabet: Partial Memoirs.

B.South: A Memoir to the Endurance Voyage.

C.The Michelin Red Guide: France 2005.

D.The Past Is a Foreign Country.小题4:What can we learn from the passage?

A.Henry Monton Stanley, was saved by a German doctor in Africa.

B.In his book, Lowenthal focuses more on history than the present.

C.It took Shackleton and his men 3 years to cross Antarctica.

D.The Station is no more famous than The Road to Osciana.

题型:选择题

IE从事的规划侧重於()规划.

A.生产发展

B.技术发展

C.管理

D.人事

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