题目

The young couple was worried,because neither of them was aware ______ they had lost the necklace. A.of the place                                               B.of which C.where                                                          D.of where 答案：D 解析: aware的常见结构为：be aware of sth.或be aware （that）意为“知道，意识到，明白”。如果选A 项，在place后应加上where。由于宾语从句中需要地点状语，故选D。 答案：D已知幂函数y=f（x）经过点（4，2），则函数y=f（x2-3x-4）的单调递增区间为[4，+∞）[4，+∞）．