【C20】A．temporarilyB．sustainablyC．permanentlyD．casually

【C20】A．elevatedB．mercifulC．contentedD．grateful

【C20】A．communicateB．conveyC．transformD．translate

【C20】A．moreoverB．howeverC．thereforeD．furthermore

【C15】______A．temporarilyB．suddenlyC．permanentlyD．sharply

【C20】A．shakingB．noddingC．shookD．/

下列物质中 ( )是目前已经肯定的必需脂肪酸。A C16:2B C18:2C C18:3D C20:3(E)C20:4