题目

辽宁省东北育才学校2011届高三第六次模拟考试 Professor Li always allows his students to voice their opinions in class, ______ sometimes their opinions are not sound. A. so that        B. in case           C. even if        D. as though        答案：C判断题（正确的为T，错误的为F） 玉米和向日葵的共同特征比玉米和苔藓的共同特征要多。 (　　)