女性，24岁，主诉：前牙牙龈肿大1年余。检查：前牙PD：3～4mm。如果此患者诊断为

下列有关目视管理的叙述中错误的是______

A．要按生产的实际需要进行，讲求实效
B．要严格统一标准，不搞五花八门的东西
C．要做到抽象、简单方便、传递信息速度快
D．要做得醒目、清楚，设置在大家都看得清的地方

混凝土散水应设置伸缩缝，其延长米应不大于（），房屋转角处做45°缝。

A.8m

B.10m

C.12m

D.15m

George is a young man. He does not have a wife, but he has a very big dog and he has a very small car, too. He likes playing tennis. Last Monday he played tennis for an hour at his club, and then he ran out and jumped into a car. His dog came after him, but it did not jump into the same car. It jumped into the next one.
"Come here, silly dog!" George shouted at it but the dog stayed in the other car.
George put his key into the lock of the car, but the key did not turn. Then he looked at the car again. It was not his! He was in the wrong car! And the dog was in the right one! "He’s sitting and laughing at me!" George said angrily. But then he smiled and got into his car with the dog.

The dog was very bright.

A. Right.


B. Wrong.

C. Doesn’t say.

PE材料按照国际上统一的标准划分为五个等级，下列用于燃气管道的是（）。

A.PE32

B.PE40

C.PE63

D.PE80

如果DRI的状态为DRI NOT DECTED，可能是（）问题

A、CTU

B、扩展光纤

C、机柜背板

D、FMUX板

E、电源开关

F、数据库