题目

 Being younger and thinner, she can eat super big hamburgers, ______ I have to give up in the interest of my weight.    A. that                   B. who                      C. whom                   D. which 答案：D夏天，从冰箱中取出一瓶冷藏的饮料，过一会儿瓶的外壁会“出汗”，这是（ ）A．水蒸气的汽化现象B．水蒸气的凝固现象C．水蒸气的液化现象D．水蒸气的凝华现象