大全186

By a vote of 9 to 0, the Supreme Court awarded the Central Intelligence Agency broad discretionary powers enabling it to withhold from the public the indentities of its sources of intellingence information.

这个it指代什么？是COURT 还是broad？ 为什么呢？

这里的it 和下面的its指代同一个事物，即cia，而broad在这里是形容词，意思是宽广的．