【C20】A．self-confidentB．self-ratedC．self-esteemedD．self-content

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

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

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

【C20】A．shakingB．noddingC．shookD．/

【C7】A．self-confidentB．self-sufficientC．self-satisfiedD．self-restrained

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