地面安全阀阀门促动器工作压力为1000PSI时,按照规范要求水压试验压力应该是()。()
A、1000PSI
B、1500PSI
C、2000PSI
D、1250PSI
参考答案:B
根据句意及所给首字母完成单词。
1. He never p _____ computer games.
2. That is a great i _____ .
3. His grandfather often listens to m _____ .
4. How about going to Beijing for a h _____ ?
5. M _____ is the second (第二) day of the week.
6. Liu Xiang is my favourite sports s _____ .
7. Tomorrow is Daming's birthday.Let's send him a p _____ .
8. When you go to a concert,you'd better buy a t _____ .
患者,女,23岁,左上第一磨牙银汞充填1周后自述咬物时疼痛,查见口腔卫生较好,无牙龈炎症,充填物表面有亮点,叩痛(+),无冷热刺激痛,处理时首选
A.调磨牙尖B.调磨充填体C.牙髓治疗D.重新充填E.全冠修复