"I'm certainly more and more to the conclusion that Iraq has, _____ they maintained (断言), destroyed almost

all of _____ they had in the summer of 1991." Blix said. [ ]

A. which, what

B. as, which

C. as, that

D. as, what

钢丝绳是起重机械的重要零件之一，用于提升机构、变幅机构、牵引机构和旋转机构。根据钢丝绳的构造和分类，挠性与耐磨性能好，但由于有强烈的扭转趋势，容易打结的钢丝绳是( )。

A．交绕钢丝绳

B．普通型钢丝绳

C．顺绕钢丝绳

D．复合型