下列颅面骨改变，不属“正常变异”()
A．双上颌窦不对称
B．单侧额窦
C．眶上筛窦气房
D．“8”字形视神经孔
E．鼻额缝
参考答案：E
Students who pass the test will be ______ to the next grade, as has been announced.
A．possessed
B．promoted
C．proposed
D．appealed
通常情况和紧急情况下，肾血流量是如何调节的？各有何重要生理意义？
