被动
Newly-born babies _____ in hospital.
Newly-born babies \_\_\_\__ in hospital.
被动大陆边缘盆底油气地质特征.pdf
《被动大陆边缘盆底油气地质特征》以板块构造运动控制原型盆地形成叠加演化过程为主线，重点研究盆地结构构造与沉积充填差异，依据其优势原型阶段将全球139个被动陆缘盆地划分为7个亚类，结合对已发现大油气田的解剖，弄清了每个亚类盆地油气地质特征和大油气田形成主控因素，提出了优势原型阶段控
On his way home, he suddenly heard his name _____.
On his way home, he suddenly heard his name \_\_\_\__.
—What do you think of the TV play?—Wonderful. It is worth _____ a second time.
—What do you think of the TV play?—Wonderful. It is worth \_\_\_\__ a second time.
俄语被动句的多维研究.pdf
本书运用形式语言学和功能语言学理论尝试进行以下研究：重新界定俄语被动态的范畴；揭示被动句的边缘和核心现象，分析它们的句法和语义；描写被动句的生成机制、语义产生机制和认知机制；阐述主动句和被动句转换模式及其条件；论述被动句的句法模式、语义模式、语用、交际效果和认知理据及其相互关系；
大气中氧气辐射吸收被动测距技术.pdf
本书围绕对争夺战场主动权、制空权以及实现战场单向透明等极具意义的远距离、高精度光电被动测距技术的热点和难点，以氧气光谱吸收为基础，重点研究新型被动测距技术的可行性、原理及系统，以及目标提取与背景抑制、距离反演等技术与应用难题。全书共8章，第1章是对被动测距技术相关知识、现状及关键
What is the main idea of this passage?
What is the main idea of this passage?
How dirty the tables are! They need _____.
How dirty the tables are! They need \_\_\_\__.
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