【C2】A．mouldsB．shapesC．structureD．patterns

[ A] patterns [ B] designs [ C] plans [ D] schemes

This cloth has a pattern of blue and white squares.（英译中)

A．Boston schools.B．Frontier life.C．Teaching requirements.D．Immigration patterns.

【C17】A．phenomenonB．processC．modeD．pattern

______ is the poetry that has either an irregular pattern or no metrical pattern.A．Free ve

The reproductive tract of stallion has two of each of the following structures EXCEPTfor one of them. Which structure is present as a single structure?