单项选择题
Without practice, there ______ no knowledge. A.is B.are C.would be D.be
单项选择题 We are obliged ______ you ______ your early reply. A.to, for B.to, to C.for, to D.for, for
单项选择题 心在液为( ) A.津 B.汗 C.尿 D.涎 E.唾
单项选择题 下面哪一个疾病引起的发音异常不属于构音障碍( ) A.延髓麻痹 B.腭裂 C.舌系带短 D.失语症 E.巨舌