【判断题】定积分和不定积分的起源是一样的,都是求导数的逆运算时提出的。
【单选题】Which of the following is not true?
A.
Scientists consider apes may drive trains some day.
B.
Apes have worked in some factories.
C.
Apes may one day be used to gather crops.
D.
An ape is not a large monkey.
【简答题】When scientists set out to explore the roots of human laughter, some apes(类人猿) were just tickled(胳肢)to help. That’s how researchers made a variety of apes and some human babies laugh. After yzing ...
【单选题】岩层向下弯曲形成槽型褶皱,自核部向翼部岩层时代依次由新到老,两翼岩层常相对向内倾斜的称为( )。
【简答题】局部受压分为 和 两种情况。通过对砌体局部受压破坏的试验表明,局部受压可能发生三种破坏: 、 和直接与垫板接触的砌体的局压破坏。其中直接与垫板接触的砌体的局压破坏仅在砌体材料强度过低时发生,一般通过 ,可避免发生这种破坏。
【简答题】Some apes have __________ the ability to communicate with humans using sign language.
【判断题】背斜的岩层变形向下弯曲,其核心部位的岩层时代较新。