在施工阶段，混凝土搅拌机、振捣棒、电锯等昼间作业的噪声限值为( )dB(A)。
A．55 B．65 C．70 D．85
参考答案：C
My friend me. I have to leave now. [ ]
A. waits for
B. waited for
C. is waiting for
D. was waiting for
Wernicke失语
