XY07-18

A/D如何取舍？？？

GWD-9-Q18:GWD-13-30

For the first time in the modern era, non-Hispanic Whites are officially a minority in California, which amounts to a little less than half the population of the state, down from nearly there-quarters only a decade ago.

1. which amounts to a little less than half the population of the state, down from nearly three-quarters only a decade ago

2. which amounts to a little less than half the population of the state, down from a decade ago, when it was nearly three-quarters

3. and that amounts to a little less than half the population of the state, down from a decade ago, when they were nearly three-quarters

4. amounting to a little less than half the population of the state, down from nearly three-quarters a decade ago

5. amounting to a little less than half the population of the state, down from what it was a decade ago by nearly three-quarters

选D

amounting to 是修饰 non-Hispanic Whites的，不是修饰minority

for the first time变成一个少数民族，原来不是的，所以不是修饰 minority