Why does the author mention the specimen preserved in the birth canal?

• A、To illustrate that the embryo fossils are quite advanced in their development.
  
  

• B、To explain why the fossils are well preserved
  
  

• C、To explain why the fossils are well preserved
  
  

• D、To prove that ichthyosaurs are marine animals
  
  

下面的短文有10处空白，每处空白后的括号内有一个词，请根据短文内容将其正确的形 式填入文中，以恢复文章原貌。

Testing:Is it the Only Way to Evaluate Students?

About ten percent of ___41___ (spend) on primary and secondary education in the United States comes from the federal government. For ten years now, federal law has tied this cost to student ___42___ (perform) .States have been required to show progress through___43___ (year) testing.

States say testing tells only part of the story about efforts by schools and students to improve. So the Obama administration has eased the limits on states in ___44___ (measure) performance.

The western state of Colorado, for example, has a new ___45___ (assess) method.The idea is to show ___46___ (academy) growth, not just achievement on tests. It combines test scores, family income levels, school size, the ethnicity of the student and many other factors.

Josh Smith is principal of a middle school in a network of public charter schools ___47___ (call)  West Denver Prep. Charter schools are publicly funded but not operated the same as ___48___(tradition) public schools. Mr.Smith says he likes to show his students this graph so they can see their school's progress. On average, students enter sixth grade at West Denver Prep ___49___ (perform) below grade level. ___50___ (strange) enough, most are outperforming other students across the state three years later.

 

Ireland is positioned at No.1 because it combines the most desirable elements of the new with

some good elements of the old.

• A、True
  
  

• B、False
  
  

• C、Not Given