The fact that it has become more onerous or more expensive for one party than he thought （）sufficient to bring about a frustration. ["is not","is","will probably be","is one of the way by which it i"]
输出动物，出境前需经隔离检疫的，在口岸出入境检验检疫机关指定的隔离场所检疫。输出植物、动植物产品和其他检疫物的，在仓库或者货场实施检疫；根据需要，也可以在生产、加工过程中实施检疫。（）
被人们尊称为“电脑之父”的是（）。 ["乔治·布尔","艾仑·图灵","冯·诺依曼","比尔·盖茨"]
下列职业中工作压力最大的是（）。 ["矿工","警察","军人","经理人"]
定额中垫层定额按地面垫层编制，若为满堂基础垫层，人工、机械分别乘以下列系数（）。 ["1.00","1.05","1.10","1.15"]
什么是碳反应？
