与WXR雷达接收机相比，应答机接收机的灵敏度（）。
A.通常低于WXR
B.通常高于WXR
C.与WXR大体接近
D.不一定高于或低于WXR
参考答案：A
Many festivals are held _______ our ancestors for their contribution to the world. [ ]
A. in honor of
B. in the honor of
C. in memory to
D. in the memory of
柴油机修理的含义是什么？
