Which of the following could be the best title of this passage?

[材料题] (1)An American spacecraft is just about to fly past the planet Neptune (August 1989). No other object from Earth has ever made such a trip. The unmanned spacecraft is called Voyager-2. It will fly past Neptune at four hours, Greenwich Mean Time, Friday (August 25, 1989). (2)Voyager-2 weighs just one ton. It is moving 27 kilometers a second. As it flies past Neptune, it will get within 5000 kilometers of the planet's north pole. For the first time, scientists will get a close look at a planet that is more than 4000-million kilometers away from Earth. (3)We know very little about Neptune. From Earth, even through powerful telescopes, the planet looks just like a fuzzy blue-green ball. We have learned some things, however. For example, Neptune is about four times bigger than Earth. It is mostly gas with only a small solid center. It has several moons. And like the other distant planets in our solar system, it has rings. The amount of sunlight reaching Neptune is about 1000 times less than the amount reaching

单项选择题1.Which of the following could be the best title of this passage?: A、Exploring the Planet Neptune.; B、Exploring Outer Space.; C、Exploring the Planet.; D、Exploring Planets.

单项选择题2.Which of the following statements is NOT true?: A、Neptune is a planet that is more than 4000-million kilometers from Earth.; B、Scientists know very little about Neptune.; C、Neptune is much bigger than Earth.; D、Neptune is much colder than Earth because it is about 212 degrees below zero Celsius.

单项选择题3.Which of the following statements is True according to the passage?: A、Voyager-2 will fly past Neptune at four o'clock, Greenwich Mean Time, Friday.; B、Voyager-2 will be launched on Friday.; C、Neptune is just a fuzzy blue-green ball.; D、Voyager-2 has sent detailed pictures and thousands of pieces of information back to Earth.

单项选择题4.The word "moons" in Paragraph 3 refers to ______.: A、the bodies, which move round the earth; B、the bodies, which move round a planet; C、the rings around the planet; D、the other distant planets

单项选择题5.It can be inferred from the passage that_____.: A、Neptune is about four times as big as Earth; B、Neptune is a planet in the Solar System; C、the amount of sunlight reaching Neptune is no less than the amount reaching Earth; D、Neptune is as cold as the other planets

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