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B. in C. on D. with 15, The speed of cars and trucks is _____ to 30 kilometers per hour in large cities in China. A. limited B. limiting C. limiting to D. limited to 第二節(jié):完形填空 閱讀下面短文,掌握其大意,然后從 16—25各題所給的四個(gè)選項(xiàng)( A、 B、 C 和 D)中,選出最佳選項(xiàng)。 How Americans Began to Eat Tomatoes People have strange ideas about food. For example, the tomato is a kind of very delicious vegetable. It is one of useful plants that can be prepared in many ways. It has rich nutrition and vitamin in it. But in the 18th century, Americans never ate tomatoes. They grew them in their gardens because tomato plants are so pretty. But they thought the vegetable was poisonous (有毒的 ). They called tomatoes “poison apples.” President Thomas Jefferson, however, knew that tomatoes were good to eat. He was a learned man. He had been to Paris, where he learned to love the taste of tomatoes. He grew many kinds of tomatoes in his garden. The President taught his cook a way for a cream of tomato soup. This beautiful pink soup was served at the President’s party. The guests thought the soup tasted really good. They never thought their president would serve his honored guests poison apples. Jefferson never spoke to his honored (忠實(shí)的 ) guests about the fact. 26. After you read the passage, which of the following do you think is true? A. Americans never ate tomatoes after they