4. In the 1980's the rate of increase of the minority population of the united states was nearly twice as fast as the 1970's. A.twice as fast as B.twice as fast as it was in C.twice what it was in D.two times faster than that of E.two times greater than
C是答案。C比B优越在哪？
5. In its most recent approach, the comet Crommelin passed the Earth at about the same distance and in about the same position, some 25 degrees above the horizon, that Halley’s comet will pass the next time it appears. (A) that Halley’s comet will pass (B) that Halley’s comet is to be passing (C) as Halley’s comet (D) as will Halley’s comet (E) as Halley’s comet will do
