福州地铁正在建设中,为解决噪声扰民的问题,地铁公司对部分设备安装了消声装置,这种减弱噪声的途径是在 [ ]
A.声源处
B.传播过程中
C.人耳处
D.声源和人耳处
答案:A
–Mike, I will miss you __________!
--Me, too. I’m always looking forward to _________ you
A.too much, hearing from
B.too much, hear from
C.much too, hearing from
D.much too, hear from
下列哪组物质均属可燃固体?
A.香蕉水、酒精
B.面粉、油漆
C.沥青、松香
D.甲烷、乙炔