Q14:

In 1914 a total of 469,000 cars and trucks were produced in the United States, but in 1929 almost twice the numbers of tucks alone came off the assembly lines.

1. the numbers of tucks alone
2. that number of trucks alone
3. the number of trucks by themselves
4. as many trucks themselves
5. as many trucks by themselves

为何不选C而要选B呢? 不是the number 更好一点吗?

that number 指代469,000，

这是LES的解释, 我对其产生置疑. 469000是两部分总和,不是truck的数量,所以不能用that呀, 我认为选A

不同意。a用的是numbers,b中表示单单卡车的生产量就跟以前卡车轿车总量相当。