下列选项中不属于局部麻醉的是（） A.表面麻醉 B.局部浸润麻醉 C.区域阻滞 D.

由一块底长2m、高3m的等腰三角形木板中锯下一块最大的正方形（正方形木板有一边与三角形木板的底边重合）．这块正方形木板的面积是______平方米．

You are one of four full-time project managers in an organization. You all share an administrative person. There are generally 8-10 project per year that involve about 25% of the organization-employees；however, these employees do not report to you. Your organization can best be classified as ______ .

A．functional

B．p matrix

C．projectized

D．balanced matrix

腺泡中央型肺气肿病变特点是（）。

A.肺泡扩张

B.呼吸性细支气管扩张

C.呼吸性细支气管和肺泡均扩张

D.终末细支气管扩张

E.肺泡和终末细支气管均扩张

地球的内部圈层及界限。

显著性水平α=0、01时，表示置信程度为：（）

A、1%

B、10%

C、90%

D、99%