螺杆泵备用螺杆的最佳保存方法是（） A.水平放在搁架上 B.垂直悬吊固定 C.非螺杆 发布时间：2018-05-11 10:16 │ 来源：www.tikuol.com 题型：单项选择题 问题： 螺杆泵备用螺杆的最佳保存方法是（）A.水平放在搁架上B.垂直悬吊固定C.非螺杆端向下倾斜存放D.非螺杆端向上倾斜存放
题型：单项选择题 患者，男，56岁。左上后牙咬合不适2个月余，夜间疼痛2天。检查：左上6未见明显龋损，近中疑似有一裂纹，叩（+），咬诊引起撕裂样疼痛，温度测试引起持续性疼痛。对该牙的处理以下哪一项不正确（）A.降低咬合B.制作带环C.牙髓治疗D.根管治疗后冠修复E.磨除裂纹充填 查看答案
题型：单项选择题 用方框中所给单词或短语的适当形式完成下列句子。smoke, open, good, cry, rain, learn, isn’t, there, is, there, wait for, make1. The man is sitting in the hall, ___________ his wife.2. Could you please ___________ here? I don't like this smell.3. It ___________ since last night.4. Would you mind ___________ the door for me?5. Liu Ying plays ping-pong as ___________ as Liu Li.6. There is little milk in the bottle, ___________?7. Listen! Can you hear a baby ___________ in the next door?8. In the past, newspapers ___________ it easy for people to get information, but now it is changing.9. There is a beautiful clock on the wall, ___________?10. Li Lei ___________ English for 5 years. 查看答案