【简答题】听力原文: Snow is a subject of great interest to weather experts. Experts sometimes have difficulty estimating where, when or how much snow will fall. One reason is that heavy amounts of snow fall in surp...
【简答题】Questions 1-7 Complete the statements below using NO MORE THAN THREE WORDS for each answer. 1. Snow is a form of frozen water and it contains many groups of tiny ice __________ called snow crystals. 2...