抗渗混凝土(impermeable concrete) 名词解释
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According to the passage, which of the following is one of the "tend-and-befriend" behaviors?
A. Quarrel with other family members.
B. Travel alone to other countries.
C. Give a hand to other people.
D. Care about the children.
(汉译英)听说可以上大学,他心里充满了喜悦和激动。