下列物质中,与C02、CuCl2溶液、FeCl3溶液都能发生反应,且都有明显现象的是( )
A.NaOH
B.Ca(OH)2
C.H2S04
D.HN03
答案:B
—Your grandma is 98. How is she?
—She is___________, but she is very healthy.[ ]
A. new
B. tall
C. old
D. short
液力偶合器严禁使用可燃性传动介质。