单选题：Owing to ________ competition among the airlines, travel exp

题目内容：

Owing to ________ competition among the airlines, travel expenses have been reduced considerably. A．fierce
B．strained
C．eager
D．critical

参考答案：

答案解析：

________ the help of their group, we would not have succeede

________ the help of their group, we would not have succeeded in the investigati

分类：英语四级题型：单选题

Weallenjoyourfreedomofchoiceanddonotliketoseeit________whenitiswithinthelegaland

分类：英语四级题型：单选题

该企业离职人员数量最多的是（）。A．高级经理 B．客户经理 C．业务主管 D．业务员

分类：英语四级题型：单选题

（二）某鞋业集团公司为扩展经营规模，将业务扩展逐步扩展到服装、箱包领域。该公司在决定市场营销策略之前，对市场营销环境经行分析，将总体市场分割为若干个子市场，选择

分类：英语四级题型：单选题

HowdidscientistsdiscoverthesourceofleadpollutioninGreenland（　　）?A．Byanalyzingthe

分类：英语四级题型：单选题