根据上述情况,应首先考虑的诊断是
A. 急性汞中毒
B. 慢性铅中毒
C. 急性苯中毒
D. 慢性汞中毒
E. 慢性锰中毒
E1载波的数据速率是________Mb/s,T1载波的数据速率是_______Mb/s。
A) accidentB) accident’sC) accidentsD) accidental
A. accident
B. accident’s
C. accidents
D. accidental
Most broadcasters maintain that TV has been unfairly criticized and argue that the
A. granted
B. implied
C. exaggerated
D. remedied