【单选题】听力原文: With its 2X optical zoom lens, 3.2 megapixels and the size of a credit card, the Canon Digital Power-Shot S230 camera, introduced in September, 2002, might strike some as a marvel. But the compa...
【简答题】阅读理解。 Have you ever been at a meeting while someone was a speech and realized suddenly that your mind was a million miles away? You probably felt sorry and made up your mind to pay attention an...