需要复制惟一的合格血液标签，应由（）确认原先印制的合格血液标签已被销毁。
A、被授权者
B、计算机管理员
C、科主任
D、质量主管
参考答案：A
团体劳动争议的特点主要是（）
A.争议主体的团体性
B.争议内容的特定性
C.争议内容的多变性
D.争议的时间性
E.争议影响的广泛性
根据句意，把括号中的汉语译成英语。
1. Look! Some boys are playing ____________ (足球) on the playground.
2. These new shoes are not very ____________ (舒适的)
3. The food is very ____________ (美味的), I like it a lot.
4. Everyone in the family watched the basketball game on TV ____________ (除了) Sun Liang.
He was out at that time.
5. She has a beautiful ____________ (嗓音) and sings very well.
