患者女,48岁,因“接触性阴道出血半年余”来诊。经阴道超声:子宫饱满,内膜正常形态消失,宫腔内见边界不规则的不均匀回声区,内部可探及较丰富的动静脉血流信号,PSV=33cm/s,RI=0.34。为明确诊断,首选检查为()。 ["A.超声造影成像","CT","MRI","宫颈刮片","诊断性刮宫"]
畸形中央尖最多见于() ["上颌第一前磨牙","上颌第二前磨牙","下颌第一前磨牙","下颌第二前磨牙","上颌第三磨牙"]
牙齿发育钙化的中心称生长叶,多数牙的发育所含生长叶的数目为() ["1个","2个","3个","4个","6个"]
下列脑神经中属于纯运动神经的是() ["面神经","迷走神经","三叉神经","舌咽神经","舌下神经"]
供应小脑的动脉中错误的是() ["小脑下后动脉","小脑下中动脉","小脑下前动脉","小脑上动脉","基底动脉"]
黑盒测试与白盒测试各有哪些优缺点,应该如何结合才能解决漏洞和冗余问题?