All students need to have good study habits. When you have good study habits, you will learn things quickly and also remember them easily. Do you like to study in the living room? This is not a good place, because it is usually too noisy. You need to study in a quiet place, like your bedroom A quiet place will help you only to think about one thing. When you study, do not think about other things at the same time. Only think about your homework. If you do so, you will do your homework more quickly, and you will make fewer mistakes.
    Good study habits are very important. If you do not have them, try to learn them. If your studyhabitsare already good. Try to make them better.

把分数通分，分数的分子和分母都变大了，分数值也变大了。

舟舟同学是一位发育正常的初中生，下列关于他的估测与实际情况相符的是（　　）

如图是与生殖有关的结构示意图，请分析回答：

He ____ (manage) to escape from the cave and got rescued by the local police.