题目内容：
请在第 _(54)___ 处填上正确答案。
A．so B．to
C．for
D．like
参考答案：
答案解析：
单选题：请在第 _(54)___ 处填上正确答案。
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B．to
C．for
D．like
B．to
C．for
D．like
制备维生素C注射剂时，加入的亚硫酸氢钠是作为（ ）
制备维生素C注射剂时，加入的亚硫酸氢钠是作为（ ）
请在第 _(53)___ 处填上正确答案。
请在第 _(53)___ 处填上正确答案。A．amusement B．play C．enjoyment D．fun
It is impossible for the Prime Minister to hear all of the
It is impossible for the Prime Minister to hear all of the opinions.A．Right B．
The Prime Minister reads petitions every day.
The Prime Minister reads petitions every day.A．Right B．Wrong C．Not mentioned
Many of the problems presented by the country's geographical
Many of the problems presented by the country's geographical features found solu