某患者，经口腔检查，在牙尖交错（牙合）时，上下牙齿彼此以切缘相对，可诊断为（）
A.反覆盖
B.反（牙合）
C.开（牙合）
D.锁（牙合）
E.对刃（牙合）
参考答案：E
解析：对刃（牙合）：牙尖交错（牙合）时，上下牙齿彼此以切缘相对，或以颊尖相对；开（牙合）：牙尖交错（牙合）时，上、下牙列部分前牙甚至前磨牙均不接触；锁（牙合）：牙尖交错（牙合）时上后牙的舌尖咬在下后牙颊尖的颊侧；反锁（牙合）：牙尖交错（牙合）时下后牙的舌尖咬在上后牙颊尖的颊侧。
A winter storm (暴风雪) usually can last for some time with high winds, cold rain, heavy snowfall (降雪) and low temperature. Winter storms can make driving and walking dangerous. Before a winter storm: ◆Have a good plan. ◆Buy some food, water and warm clothes for your family. ◆Always listen to the weather report for your area. During a winter storm: ◆Stay at home and wear warm clothes. ◆Eat more food and drink more water. ◆If you must drive, carry a cell phone . After a winter storm: ◆Don’t drive until the weather gets better. ◆Check on your neighbors to make sure that they’re OK. 请根据材料内容完成下面表格，每空词数不限。
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