Vichyssoise is a soup made of ().
A. leeks
B. onions
C. potatoes
D. cream
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What side dish would he like to go with the steak?
A. peas
B. carrots
C. asparagus
D. French fries
液压传动是以()能来传递和转换能量的,它实现从()能到()能和()能到()能的两次转换。
液压传动是以()为传动介质,依靠液体的()来传递动力和运动。