问题
单项选择题
山地河流的弯曲多为哪一种？（）
A.微弯曲
B.近于半圆形弯曲
C.钝角形弯曲
D.菌形弯曲
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
山地河流的弯曲多为哪一种？（）
A.微弯曲
B.近于半圆形弯曲
C.钝角形弯曲
D.菌形弯曲
参考答案：A
Now more and more people get to know the importance of doing sports. It can bring fun us and it can also make us . what should we do? First, we should choose (选择) our favorite ones from kinds of sports. The sports must be right for us. Second, we must warm up (热身) before . Third, a beginner, you had better have an exercise plan. For example, are you going to exercise each time? How many a week? If you’re a of sports, it’s important to know this. Last but not least, you had better not exercise if you feel , or it will be very dangerous.
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