第34题: [单项选择]Before buying a factory ______ setting up one of your own in that area, you should carefully evaluate the security risks there. A. so that B. nor C. or D. so 参考答案:C 答案解析:[理由] so that+主语+助动词(may/can/will)+动词原形 以便……(连接词) [例] You should get up early so that you can ca