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问题 单项选择题 A1/A2型题

内听道扩大为一侧内听道增宽超过（）

A.2mm

B.5mm

C.7mm

D.4mm

E.6mm

答案

参考答案：C

解析：两侧内耳道宽径相差大于2mm，或一侧增宽超过7mm，为内耳道扩大。

材料分析题

吃的变迁

（1）上面漫画说明了什么?

                                                                                                                                                               

                                                                                                                                                               

（2）这种变迁的原因有哪些?

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

（3）发展是解决中国一切问题的“总钥匙”，对此，你如何理解?

                                                                                                                                                              

                                                                                                                                                             

                                                                                                                                                             

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单项选择题

标准规定采样精密度与煤的灰分值有关的煤是（）

A.洗煤

B.精煤

C.毛煤

D.原煤
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