题目内容
我国拥有世界229／6的人口，而拥有的世界耕地仅为占（）。
查看答案
搜索结果不匹配？点我反馈
更多问题
According to the author, ______.
Many Americans are trying to lose weight because______.
Historians can't tell us when, where or 【71】 the first food was cooked. In earliest 【72】 when people had eaten their food 【73】 , an fire was used only to provide heat and light.
The first primitive cooks were 【74】 women, 【75】 preparing food and making clothing were considered women's work. 【76】 most of the great chefs in history have been men. This might have been because chefs learned 【77】 work in the kitchens of rich families 【78】 in restaurants and women didn't often take jobs outside their homes, or it might have been because kitchen equipment was so heavy and difficult to work with 【79】 only strong men could do it. In modern times, great female chefs have become known, and some of the best cook books 【80】 by women.
(71)
Do you want to say what you think in a letter to the President of the United States？ You'll get a reply from him—written in ink, not typed—after only a few days.
The President gets about 4,000 letters every week. He answers everyone who writes to him on special White House Paper. But he doesn't need a lot of time for it. In fact, he only gives 20 minutes a week to looking at his personal correspondence. He has the most modern secretary in world to help him.
His computer, worth ￡ 800,000; which has its own room on the first floor of the White House. It has a bank of electronic pens which write like the President writes, in his favorite light blue ink. Each letter the President receives gets a number, according to the type of answer it needs. The pens then write the correct reply for it, according to the number. Each letter takes less than a second to write. A White House official said, "It's not important that the letters come from a computer. Each letter says what the President wants to say. "
______for a reply from the President.
微信支付 
支付宝支付