需要变更工作班成员时，须经工作票签发人同意，在对新工作人员进行安全交底后，方可进行工作。（ ）
参考答案：错
用所给词的适当形式填空
1. Kate and Jim come from America. They are not__________( China).
2. This is the__________(twin) room.
3. When is__________(he) birthday?
4. I'm twelve__________(year) old.
5. —When is the school trip?
—It's November__________(twelve).
6. The students have a one-day school__________ ( trip) in Hangzhou.
7. Do you know_________ (us) school trip.
8. I Know the date of his__________(birthday).
9. There is an__________(old) man in the room.
10. Tom is the__________(two) son of the family.
心浊音界向两侧增大，且左界向左下增大(普大型)常见于
A．浮肋B．肋脊角C．胸骨角D．腹上角E．肩胛下区
