单项选择题

A．Providing a warning light when the sound is too loud.
B．Producing more personal stereo systems.
C．Restricting the use of personal stereos.
D．Setting up a standardized hearing test.
<上一题 目录 下一题>
热门 试题

单项选择题
A．He’s a boat builder.B．He smokes a pipe.C．He paints in watercolours.D．He fixes pipes.
A．He’s a boat builder.
B．He smokes a pipe.
C．He paints in watercolours.
D．He fixes pipes.
填空题
S7. Thanks to ______ , rock music is widely welcomed by people around the world. Most important object of study is.
相关试题