⑴Amy ____ A. climbed the Tianshan Mountains yesterday.
⑵Sam ____ B. went to Xinjiang last year.
⑶Lingling ____ C. visited the Tianchi Lake last week.
⑷Daming ____ D. rode a horse last year.
⑸Tom ____ E. went to Beijing last summer holiday.
能用金属与同一种稀酸反应制取的化合物是（ ）
俄罗斯工业区主要分布在内陆，而日本却分布在沿海，主要原因是（ ）
有关DNA的叙述正确的是
