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Explains the basic science of flight, the problems of getting vehicles into the air, different types of engines, and aircraft design, and includes instructions for making aircraft models.
Número de páginas 32
PDF, EPUB, MOBI
4.4
87 Valoraciones Totales
In Earning Money, early readers learn about the concept of earning money and ways to do it. Vibrant, full-color photos and carefully leveled text will engage early readers as they discover basic economic principles.
Life Long Ago brings ancient civilizations to life and reinforces important early elementary social studies standards such as time, continuity, and change. Students will learn what daily life was like, how ancient peoples governed themselves, how they communicated, and how the influences of ancient cultures are still felt today.
When Maldonado, the journalist, refuses to stop publishing editorial against the dictator who rules his country, he is taken prisoner.
Es el verano de 1990 y Lucas Sastre, recién acabada la carrera de Arqueología y con pocas perspectivas laborales, recibe una misteriosa oferta de empleo. Supera pruebas psicológicas, de agudeza visual... Pronto descubre quién está detrás: el CESID, que quiere reclutarlo para su delegación en El Cairo. Una vez allí, bajo las órdenes de Julio Flores-Westenfarg, un agente bregado en mil batallas, Lucas se ve involucrado, casi a su pesar, en una operación secreta del gobierno español que tiene como objetivo conseguir acceso sin límites a los pozos de petróleo de un pequeño país...
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