下列做法符合环保要求的是（ ） A．造纸厂的碱性污水直接排放到小河中 B．炼铁厂的废气中含有大量的CO未经处理直接排放到空气中 C．农业上合理高
We all have a first and last name, or personal and family name. But for many of us, it doesn’t stop there. We also have nicknames, (25)_______ mostly come from our real name. Some of them are ob
阅读材料，回答问题。 材料 古希腊智者学派的代表人物之一普罗塔哥拉提出了“人是万物的尺度”；与智者学派同一时代的苏格拉底提出“认识你自
Boys and girls, I have _________ to tell you.A．nothing interestingB．interesting something C．interesting anythingD．something interesting
The girl is greatly interested in the song.The lyrics of it__ __ her thoughts and feelings. A．express B．discuss C．expect D．imagine
香豌豆中，当CR两个显性基因都存在时，花呈红色。一株红花豌豆与基因型为ccRr的植株杂交，子代中有3/8开红花；若让此红花香豌豆进行自交，后代红
Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store. A. anyone B. the others C. that D. the ones
已知离子还原性SO32﹣＞I﹣＞Fe2+＞Br﹣，向含SO32﹣、Fe2+、Br﹣、I﹣各0.1mol的溶液中通入标准状况下的Cl2，通入Cl2的体积和溶液中相关离子的物质的量的
