J级油井水泥适应于超高温高压油井注水泥塞施工。
A. 正确
B. 错误
地面水的排除系统按其排水方向不同,分为纵向排水和()。
气管切开固定带的松紧一般以在固定带和皮肤之间恰能伸进一指为宜。
A. 正确
B. 错误
Most contributors to the Communicative Approach share the view that language is used for communication and are more concerned with meaning than with().