【单选题】婴幼儿消化道的发育从胎儿时期开始,以后继续发展至( )时初具规模。
【单选题】Patients tend to feel indignant and insulted if the physician tells them he can find no organic cause for the pain. They tend to interpret the term 'psychogenic' to mean that they are complaining of n...
A.
A pain can only be caused by physical harm.
B.
Some people are complaining of a pain which does not exist.
C.
A pain can be caused by psychogenic factors.
D.
Educated people do not complain of nonexistent pain.
【单选题】The American diplomat felt insulted because he ______.
A.
was unaware of the local time system
B.
did not adjust himself to the local life style
C.
was not familiar with local tradition
D.
did not speak the local language
【判断题】一系列款项收支发生在每期期初就是预付年金。
【单选题】将保温瓶的双层玻璃中间抽成真空,其目的是什么
【判断题】二叉树由根结点,左子树,右子树三个基本单元组成,所以,二叉树有五种基本形态。( )
【判断题】二叉树由 根结点左子树右子树三个 基本单元组成