考博考试

【单选题】 In his ______to further his knowledge of the universe, man has now begun to explore space.
A．endeavor
B．expedition
C．trail
D．chase

网考网参考答案：A
网考网解析：
[解析] endeavor试图；expedition远征；trail追踪；chase追逐。根据句意，A最合适。 查看试题解析出处>>