综合练习题（六）Part II Vocabulary and Structure (20 minutes , Points )Directions:There are twenty incomplete sentences in this section. For each sentence there are four choices marked A,B,C and D. Choose the one that best completes the sentence. Mark your answer on the ANSWER SHEET with a single line through the center.16._American firms often talk about the vast amounts spent on training their work forces, in fact they invest less in the skills of their employees than do either Japan
