空气在气缸内被压缩的过程是其分子剧烈和强烈摩擦的过程，势必伴随着气温的猛烈升高
参考答案：对
It was very __________ of you to let us know you were going to be late.
A．considering
B．considered
C．considerable
D．considerate
试述企业技术结构调整和优化的内容。
