由于喷气纺特定的成纱原理，为确保前钳口输出的须条吸入加捻器，牵伸须条（）有横动。
参考答案：不能
某病人患消化性溃疡多年，今晨突感全腹部剧烈而持续的疼痛，并两腿卷曲在床上，不愿移动体位，查体：全腹压痛及反跳痛，腹肌紧张。提示该患者发生了
A．穿孔B．出血C．幽门梗阻D．癌变E．感染
用单词的适当形式填空
1. Would you like some____(potato)?
2. Lily decided____(join) the art club yesterday.
3. Please stop____(play) the piano. Your father is sleeping.
4. The snowy weather makes some people____ (feel) sad.
5. The (leaf) of most plants are green.
