题目内容：
A hold
B fix
C retain
D keep
参考答案：
答案解析：
单选题：A hold B fix C retain D keep
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A hold
B fix
C retain
D keep
A hold
B fix
C retain
D keep
试论述幼儿自我评价发展的趋势和主要特点。
试论述幼儿自我评价发展的趋势和主要特点。
阅读以上短文，回答题All the following qualities are mentioned in the p
阅读以上短文，回答题All the following qualities are mentioned in the passage EXCEPT_______
They converted the spare bedroom into an office．
They converted the spare bedroom into an office． A．reduced B．moved C．turned D．re
请在第（48）处填上最佳答案。
请在第（48）处填上最佳答案。
What is this passage about? __________
What is this passage about? __________A．It is about the American National Parks，