July 20, 1969, was one of the most important days in the world history. On that day, two American astronautswalked on the moon! The journey of the spacecraft Apollo 11 began on July 16, when it took off from Cape Kennedy in Florida. There were three specially trained astronauts on Apollo 11 - Neil Armstrong, Edwin Aldrin and Michael Collins. At 10:56 a.m. Florida time, Neil Armstrong became the first person to step onto the moon! The words he spoke at that moment became famous: “That is one small step for man, one giant leap for mankind.” He and Edwin Aldrin spent two hours on the moon. On July 24, Apollo 11 returned safely to the earth. The three astronauts went home and they were international heroes.
【題組】46 What does astronaut mean?
(A) A person who travels to outer space
(B) A person who predicts weather condition
(C)A person who studies plants
(D) A person who makes airplanes