【C20】A．permanentB．consciousC．subordinateD．spiritual

Her office in the First National Bank building is provisional.A．permanentB．temporaryC．corr

It is not easy to distinguish cultured pearls from______pearls.A．permanentB．preciousC．auth

【C15】A．permanentB．temporaryC．contemporaryD．arbitrary

【C11】A．permanentB．lastingC．transientD．temporary

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

你在检查现场搅拌的混凝土资料时 应见到()混凝土的《混凝土开盘鉴定》记录。 A C20 级和C20 级