题干

《史记·秦始皇本纪》记载:“侯生卢生相与谋曰:‘……天下之事无小大皆决于上,   上至以衡石量书,日夜有呈[定量],不中呈[不完成定量]不得休息。贪于权势至如此,未可为求仙药。’”从中我们能得出的结论是(   )

①臣民对秦始皇独断专权不满   ②秦始皇十分勤于政事

③秦始皇欲求仙药想长生不老   ④秦始皇统一了度量衡

A:①③④

B:②③④

C:①②③

D:①②④

上一题 下一题 0.0难度 选择题 更新时间:2019-10-07 09:27:48

答案(点此获取答案解析)

C

同类题4

阅读理解

    A disease called “Panama” is threatening supplies of the world's most popular fruit—banana.Two years ago,the United Nations warned that the "Panama disease" could destroy "much of the world's banana crop."Since then,things have not gotten better.A new outbreak was discovered last year in Australia.The disease started in Asia in the 1990s, and later spread to Africa and the Middle East.

    World health officials worry the disease could travel to Latin America,one of the top banana producers in the world.All this is a big concern because bananas are an important source of income and nutrients for millions of people.They are grown in 135 tropical nations.The United Nations lists bananas as one of the most important foods, along with rice,wheat and corn.

    Randy Ploetz is a professor at the Tropical Research & Educational Center at the University of Florida.Many consider him as America's top banana expert.As he explained,Panama disease affects the Cavendish banana.The Cavendish is one of more than 500 kinds of bananas.But it is the most popular.

    “The industry is waking up to the problem,”Ploetz said.“They are pretty scared.”He was speaking Thursday by telephone from Miami,Florida,where he is among 1,000 people attending the International Banana Congress.The meeting was supposed to take place in Costa Rica,but was moved at the last minute.There were concerns banana growers could spread Panama disease from dirt collected on their shoes,Ploetz said.

    Ploetz said reports that Cavendish banana production could end are not correct.But if the disease spreads to Latin America,it could hurt the world's economy along with food supplies for millions of people.Still,he said there is reason for hope.Scientists in Australia are working on a genetically engineered banana that might not be at risk of getting Panama disease.