第28题: [单项选择]The question is ______ to send troops to take part in the war. A. if worthwhile it will B. whether it will be worthwhile C. whether worthwhile it will be D. if will be it worthwhile 参考答案:B
第29题: [单项选择]
The complete range from sizes and shapes of the human population can be examined to determine reach, access and viewing capabilities.()