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【简答题】
在一般情况下,平面弯曲梁的横截面上存在两种内力,即 ,相应的应力也有两种,即 。
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【简答题】在用表格整理数据时，我们通常用______法来记录数据．
【简答题】吃饭时，我们通常用（ ）手端碗，（ ）手拿筷子。
【简答题】测量较长的路程时，我们通常用______作单位．
【单选题】听力原文： We can agree with primitive man that food is a basic need, but we differ from him in our food wants because of the wide variety of food we have available compared with him we have a wider choice...
A.
Food is no longer a basic need for us, while it was for primitive people.
B.
We eat a wide variety of food.
C.
We no longer eat fruit that primitive people ever ate.
D.
We eat more food than primitive people do.
【简答题】我们通常用到的cin＞＞，是属于______输入。
【单选题】听力原文： We can agree with primitive man that food is a basic need, but we differ from him in our food wants because of the wide variety of food we have available compared with him we have a wider choice...
A.
Food is no longer a basic need for us, while it was for primitive people.
B.
We eat a wide variety of food.
C.
We no longer eat fruit that primitive people ever ate.
D.
We eat more food than primitive people did.
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