在一般情况下,当电缆根数少,且敷设距离较长时,宜采用()敷设法。
A.直埋
B.隧道
C.电缆沟
D.架空
参考答案:A
Chinese people drink _____ beer per person now as they did 10 years ago.[ ]
A. more than twice
B. twice as
C. more than twice as much
D .twice the number of
敦煌道士王圆箓发现藏经洞的时间是()。
A.1899年
B.1897年
C.1900年
D.1903年