题目内容

能承受机械外力作用,且可承受相当大的拉力,可敷设在竖井内、高层建筑的电缆竖井内,且适用于潮湿场所的电缆型号是( )。

A. VLV、VV型电力电缆
B. VLV22、VV22型电缆
C. YFLV、YJV型电力电缆
D. VLV32、VV32型电缆

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若土的粒径级配曲线很陡,则下列说法中,正确的是()。

A. 粒径分布较均匀
B. 不均匀系数较大
C. 级配良好
D. 填土易于夯实

It is well admitted that the high () rate is caused in part by failure to communicate.

A. unemployment
B. birth
C. divorce
D. inflation

聚氯乙烯塑料衬里不包括的是( )生产系统。

A. 磷酸
B. 盐酸
C. 硫酸
D. 硝酸

According to UCP500, the terms "end" of a month in the letter of credit shall be construed as( ).

A. from the 1st to the last day of the month
B. from the 11th to the last day of the month
C. from the 15th to the last day of the month
D. from the 21st to the last day of the month

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