分歧[型]天择, 多向性选择

diversifying selection的用法和样例：

例句

A side effect of increasing genetic variance following disruptive selection often causes greater genetic flexibility of the population.经分裂选择后遗传变量增加的附带作用，往往使种群的遗传可塑性有所增加。

Annan Praises UN Envoy Role in Selection of Iraqi Leaders

注释： U.N. Secretary-General 联合国秘书长 interim [5intErim] adj. 临时的，间歇的，暂定的 interim government 临时政府 envoy [5envCi] n. 外交使节，特使 Lakhdar Brahimi 赫达

发表于:2018-12-08 / 阅读(62) / 评论(0)

VOA2004（上）--各类新闻

国际金价是否虚高?

Jim Boulden: Another deal done, another customer selling gold coins to London dealer Mike Temple. It's no surprise people are selling their gold coins and bars with prices at 25-year highs. But why ar

发表于:2018-12-11 / 阅读(37) / 评论(0)

万花筒2006年

X Tour Selection Beijing

Starting in 2006, BMW China has run its Destination X-Tour for five consecutive years. The tour is a long distance driving combining challenging experience with charity work. The selection of this year's X Tour members stated last weekend. In contras

发表于:2019-01-19 / 阅读(61) / 评论(0)

世界各地新闻集锦

经济学人33:日本银行援助欧洲

Finance and Economics；Investing in Ethiopia; Frontier mentality; 财经；投资埃塞俄比亚; 前沿思维; A new fund attests to the country's allureand to the value of connections; 新投资，国家吸引力与关系网价值的有力证明;

发表于:2019-01-27 / 阅读(31) / 评论(0)

经济学人财经系列

Marcelo injury gives Mourinho selection headache

Marcelo injury gives Mourinho selection headache RIO DE JANEIRO, Oct. 14 (Xinhua) -- Real Madrid coach Jose Mourinho has been left with a selection headache after Brazilian Marcelo joined fellow left-back Fabio Coentrao on the club's injury list on S

发表于:2019-02-09 / 阅读(67) / 评论(0)

英语新闻

Kim's selection continues World Bank's decades-long trend

WASHINGTON, April 16 (Xinhua) -- With Monday's choice of U.S.-nominated Jim Yong Kim to head the World Bank, the global lending institution continued its longstanding -- and controversial -- tradition of keeping an American at the helm. Nominated las

发表于:2019-02-18 / 阅读(57) / 评论(0)

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学英语单词

A khetaton

acoustic-based

alangs

aluminum core plastic cable

aminopropyl transferase

androsacea

ashtaroth

atoneable

balanitis plasmocellularis

bartolucci

beginnest