经营性道路旅客运输驾驶员从业资格考试由县级道路运输管理机构每月组织一次。
参考答案:错
在实际工作中,钢丝绳破断力估算公式为()。
A.S=20d2(kg)
B.S=30d2(kg)
C.S=40d2(kg)
D.S=50d2(kg)
If the consumer price index (CPI) at year-end was 142 and the beginning of the year was 135, then the rate of inflation during the year is:()
A. 5.2%.
B. 2.8%.
C. 4.7%.