问题
单项选择题
YJ17卷烟机在达到所设定的切割次数时，便产生一个脉冲信号，使气路系统中的（）动作。
A.电磁阀
B.换向阀
C.活塞
D.气缸
答案
参考答案：A
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YJ17卷烟机在达到所设定的切割次数时，便产生一个脉冲信号，使气路系统中的（）动作。
A.电磁阀
B.换向阀
C.活塞
D.气缸
参考答案：A
| 完形填空 | |||
| There was once a lonely girl who wanted love very much. One day while she was walking in the forest, she found two birds. She took them home and put them in a small 1 . She was happy to have two "friends". She 2 them with love and the birds grew strong. One day the girl forgot to close the door of the cage. The 3 of the two flew out of the cage. The girl was afraid that it would fly away. She caught it quickly. She felt glad that she caught the bird before it could fly away. Suddenly she couldn't 4 a sound from the bird. When she opened her hand, the bird was already(已经) dead. Her 5 killed(杀死) the bird! Then she saw 6 bird jumping up and down 7 the cage. She could feel its great need for freedom. It wanted to fly into the blue sky. So she let it fly away 8 . The bird circled(转圈) once, twice, and three times. The girl 9 as the bird flew. She didn't care about losing the bird any more. She wanted it to be happy. Suddenly the bird flew closer and landed softly on her shoulder. It sang the 10 song she had ever heard (她所听过的). The fastest way to lose love is to hold it too tightly, and the best way to keep love is to give it wings. | |||
| ( )1. A. box ( )2. A. looked for ( )3. A. stronger ( )4. A. listen ( )5. A. love ( )6. A. one ( )7. A. outside ( )8. A. sadly ( )9. A. watched ( )10.A.worst | B. basket B. looked at B. lazier B. make B. joke B. the other B. inside B. happily B. saw B. oldest | C. cage C. looked after C. weakest C. describe C. luck C. another C. beside C. loudly C. looked C. newest | D. bag D. looked over D. smallest D. hear D. wish D. other D. behind D. highly D. heard D. sweetest |