下列不需要灭菌处理的物品是（）A.各类穿刺针 B.口腔诊疗牙钻 C.喉镜 D.硬式内

必需脂肪酸是指______。

A．单不饱和脂肪酸

B．n—3系列脂肪酸

C．n—6系列脂肪酸

D．人体不可缺少而体内又不能合成的脂肪酸

髋部扭挫伤压痛多出现在（）

A.腹股沟部

B.髂前上棘下

C.坐骨结节

D.股骨大粗隆后方

E.骶髂关节

Dickens attacks the Utilitarian principle that rules over the English education system and destroys young hearts and minds in().

A. Hard Times

B. Great Expectations

C. Our Mutual Friend

D. Bleak House

Decomposition is the subdivision of project deliverables into smaller, more manageable components until the work and deliverables are defined at the work package level. This is a valuable tool for define scope. However, decomposition may not be possible for a deliverable or subproject if:

A．The deliverable or subproject is very complicate

B．The deliverable or subproject is already being produce

C．The deliverable or subproject will be accomplished after a very long time ( far into the futu

D．None of the above: Decomposition of deliverables is always possibl

换热的三种形式分别是什么？