隐晦：暗语
A．神奇：魔术 B．风趣：性格C．营养：牛奶 D．优雅：钢琴
参考答案：A
解析： 暗语的特点是隐晦，魔术的特点是神奇。
Though the novel had a happy ending, the readers were left ____.
A．to be satisfying
B．unsatisfying
C．unsatisfied
D．being satisfied
填料密封特点是（）。
A.结构简单
B.结构复杂
C.功率损失小
D.无泄漏
