单项选择题

In line 2 (Pare. 2), the word "it" refers to which of the following phrases（）

A．"the intention" (line 1)
B．"the collection" (line 1)
C．"one member" (line 1)
D．"each flower family" (line 1)

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单项选择题
We can infer that the plumbing （） at that time.

A．cost little
B．was more expensive than a water system
C．was too expensive for every family to afford
D．was not necessary
单项选择题
The author’s attitude towards the government’s policy is（）

A．negative
B．doubtful
C．positive
D．unknown
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