破折号的是这题么?好像是变体。 The report on the gross national product---the nation's total production of goods and services---showed that second-quarter inflation was somewhat lower than a previous estimation and the savings rate slightly higher. A.a previous estimation and the savings rate slightly higher B.a previous estimation and with a slightly higher savings rate C.a previous estimation and that the savings rate is slightly higher D.previously estimated and a slightly higher savings rate E.previously estimated and that the savings rate was slightly higher |