给老人欣赏音乐前，养老护理员应先调试音响设备，使音量（）。
A、适中
B、越小越好
C、越大越好
D、在150分贝以上
参考答案：A
38. Donkeys and camels are still widely used in some parts of the world _____ of burden.
A．for animals
B．as animals
C．as beasts
D．instead of beats
"Joe could swim when she was only four years old."
"______ clever the girl was!" [ ]
A. How
B. What a
C. What
D. How a
