【推荐1】Thanks to the experts in a________, we now have more productive hybrid rice (杂交水稻) and wheat that can satisfy the demand of people all over the world. (根据首字母单词拼写)

【推荐2】The number of people employed in a__________ has fallen in the last decade. (根据首字母单词拼写)

【推荐3】As a son of a farmer, he chose ________ (农业) as his major when he entered the university. (根据汉语提示单词拼写)

【推荐1】Our   __________（小册子）is printed on environmentally-friendly paper. （根据汉语提示单词拼写）

【推荐2】As is known to all, the f________ of the heart is to pump blood through the body. (根据首字母单词拼写)

【推荐3】The new drug may have been an improvement, but “________ (突破)” was an overstatement. (根据汉语提示单词拼写)

【推荐1】Ben will buy this refrigerator online if delivery is free of ______ (收费). (根据汉语提示单词拼写)

【推荐2】A sense of humor can also help to ease the ________(紧张)between people. （根据汉语提示单词拼写）

【推荐3】Nowadays, there are still many people wondering when the earth came into________(存在). (根据汉语提示单词拼写)