平片显示率最高的生理性钙化是（）。 A.松果体钙化 B.脉络丛钙

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问题单项选择题

平片显示率最高的生理性钙化是（）。

A.松果体钙化

B.脉络丛钙化

C.大脑镰钙化

D.基底节区钙化

E.其他

答案

参考答案：A

选择题

The World Health Organization warned that Asian countries __________ attentive to bird flu since Asia ___________ got rid of the disease completely.

A．should keep; has

B．must remain; has not

C．ought to stay; has been

D．shall be; has not been

问答题简答题

简述流程优化的步骤。