How I wish the Spring Festival Gala in 2014__________many more viewers than before. A. will attract B. could appeal to C had absorbed D. would appear to 答案:B
关于裂化和裂解的叙述中,不正确的是 ( ) A.裂解与裂化的产物中都含有不饱和烃 B.裂解与裂化都是为了得到气态烃 C.裂解与裂化的原料都是石油分馏产品 D.裂解与裂化都是为了使相对分子质量大的烃断裂成相对分子质量小的烃