问题
单项选择题
当振动值大于（）单位，下次飞行前要进行排故。
A.1
B.2
C.3
D.4
答案
参考答案：C
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当振动值大于（）单位，下次飞行前要进行排故。
A.1
B.2
C.3
D.4
参考答案：C
| 短文改错。 | |
| Peter was walking back home from school, thought about the class today. It was about giving the first aid. Suddenly she saw a young girl lay on the ground. She seemed to be asleep but Peter saw that her face was very pale. He walked up to the girl and call softly," Miss, Miss." She moved slightly and gave no clear response . He put her hand under her nose. Yes, she was even breathing . Then he suddenly saw that it was a wound on her left leg and blood was flowing out. She might have hit by a car. He dialled 120 and called an ambulance while waited for it, then he put the girl in the recovery position by roll her onto one side and placing her left upper arm under her chin. | 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ |