og 17 sc 679 比较时后面什么时候需要加that of什么时候不需要

宜哈哈

题目：og17 679. in 1979 lack of rain reduced india's rice production to about 41 million tons, nearly 25 percent less than those of the 1978 harvast.
a less than those of the 1978 harvest
b less than the 1978 harvast
c less than 1978
d fewer than 1978
e fewer than that of india‘s 1978 production

正确答案：b

我知道比较的是production，所以这边不需要 less than that of the 1978 harvast对吗
那如果是比较两个国家的产量是不是就应该用 less than that of the 1978 harvast in uk?
不知道我的理解对不对，求牛牛解释～～先谢谢啦～～

svqe124

harvest 不就是产量么，还加什么producation

1984NY

我也不懂这个问题。。。。。我想那如果改成that of the1978 那对吗。。。。

1984NY

求大神指点，我看解析说是因为有harvest和production所以就是直接对比吗

Wendy919

Firstly, it helps if you think of 41 million tons of rice as the collective equivalent of the 1979 harvest. And in A-less than those of the 1978 harvest, those refers to the tons of 1978 harvest, equals to "the tons of 1978 harvest of the 1978 harvest", which is redundant. The key point of this question is to understand what 'those'' refers to.
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