【单选题】A) To carry out a scientific survey. B) To establish a new research station. C) To rescue two sick American workers. D) To deliver urgent medical supplies.
【简答题】Questions 3 and 4 are based on the news report you have just heard . 3. ________ A ) To carry out a scientific survey . B ) To establish a new research station . C ) To rescue two sick American worker...
【单选题】A) To carry out a scientific survey. B) To establish a new research station. C) To rescue two sick American workers. D) To deliver urgent medical supplies.
【简答题】Read the article below from the magazine Scientific American. Underline the key facts in Para. 2-4. The first paragraph is done for you as an example. Centuries of silence cannot keep ancient mummies ...