题目内容：
An infant can recognize a lot of sounds by the time he or she is a year old.
参考答案：
答案解析：
单选题：An infant can recognize a lot of sounds by the time he or sh
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在《漫游语文世界》综合性学习活动中，有同学搜集到了下面的语言材料。请你运用在活动中得来的知识与能力，首先指出它存在的问题
在《漫游语文世界》综合性学习活动中，有同学搜集到了下面的语言材料。请你运用在活动中得来的知识与能力，首先指出它存在的问题，然后再作修改。学校食堂因教师打饭窗口常
请为（48）处选择最佳答案。
请为（48）处选择最佳答案。
He could not tolerate the extremes of heat in the desert.
He could not tolerate the extremes of heat in the desert.
We derive information mainly from the Internet.
We derive information mainly from the Internet.
She eventually married the most persistent one of her admire
She eventually married the most persistent one of her admirers.