El paciente cero

Los ríos son capaces de encumbrar o arruinar civilizaciones enteras, dividir culturas o unirlas, y proporcionan pistas decisivas sobre el origen del ser humano. Sumérgete en la apasionante historia de Egipto a través del NILO, conoce a los príncipes bandoleros del RIN, asómbrate con la rica diversidad del AMAZONAS o con las sagradas aguas del GANGES. Descubre qué secreto se esconde en el fondo del río AWASH, cómo el ZAMBEZE cambió África para siempre o por qué casi cualquier canción de éxito se remonta al MISISIPI. Averigua el papel crucial del TÁMESIS, el YANTSÉ y el TIGRIS y...

When people think of soft things, they immediately conjure up images of furry bunnies and similarly textured animals and objects. This inviting book helps young readers to do the same, as learning about textures is an important tenet of the early elementary curriculum. Carefully selected photographs of soft objects make the concept of texture clear to the reader as well as aid in vocabulary acquisition.

This Spanish-language series presents the complete range of math concepts and skills students are expected to master during the first grade. The series moves sequentially, from easiest to hardest concepts, with each book covering a different math topic. The first volume reviews the math concepts students learned in kindergarten. The next six books cover counting, adding and subtracting, tables and graphs, money, patterns, and measuring. The eighth volume is a summary of the math concepts students have studied throughout the year. Each book presents situations that show the relevance of math...

Producto de toda una vida de investigación, esta magnífica obra compendia, sintetiza e interpreta todos los conocimientos que hoy día pueden obtenerse en torno a la comedia romana. En ella, los autores, especialistas de reconocido prestigio, analizan los géneros que la conformaron –en orden cronológico, palliata, togata, atellana y mimo– poniendo especial énfasis en las figuras, sin excluir a ninguna, y las obras que la desarrollaron desde su nacimiento en el siglo III a.C. hasta el final del Imperio. Este libro, concebido como obra de referencia y como monografía científica,...

This book is primarily intended to help Spanish learners in achieving great performance on the Spanish DELE exam, specifically for the level A2. In addition, it may also assist native speakers of Spanish who want to acquire, refresh or improve their knowledge to become linguistic educators. It’s important to highlight that speaking a language does not guarantee success in a specific examination. This is due to the structured design of the test, with particular questions which aim to evaluate the diverse skills of the language learners. There is a variety of questions organized by tasks and...