蟹脚兰怎么剪枝:May I ask a favor of you?

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1.Our factory is much more productive now.
This year's production is five times
______ it was fifteen years ago.
a.that b.than c.what. d.as
2.To save money from my education, mother
often takes on more work than _____ good
for her .
a.to be b.is c.what is d. which is

以上两题应选那个选项,请给出详解.
Thank you for your kindenss.
谢谢大家了,看来是书上的答案错了,我和你们选的一样,再看看有没有谁有不同的答案。

D times as 多少倍

C 指什么工作都干

d

c

c
c

d c

dc