生产性采购往往与最终产品相关，因此，此类采购更容易预测。
参考答案：错
用所给词的适当形式填空。
1. Ping-pong is the _____ (popular) game in China .
2. The _____ (visit ) are from Qingdao and Yantai .
3. His _____ (strong) makes him proud .
4. Who _____ (win) this game last night ?
5. The people in the hotel come from _____ (Greek).
穿过浓烟逃生时，该如何做？
