【简答题】In the past few decades since the launching of the first artificial ( ) in 1957, thousands of “man-made moons” have been rocked into the Earth’s orbit, each designed to serve a specific purpose or mi...
【简答题】The launching of the rocket was delayed an hour by bad weather. If the weather (be) good , they would have launched it at 8:00 instead of at 9:00 .
【单选题】Choose the correct words or phrases to complete the sentences. ____ the launching of the first communication satellite, more and more programs are televised live from all over the world.
【单选题】The launching of the rocket was delayed half an hour by the bad weather. If the weather good they would have launched it at 8:30 instead of at 9:00.