瘿痈相当于西医疾病：
A．单纯性甲状腺肿
B．甲状腺癌
C．甲状腺腺瘤
D．甲状腺炎
E．腮腺混合瘤
参考答案：D
He has tried four times, but his teacher wants him to try ______ fifth time.
A. the B. a C. /
按目标利润预测的目标成本应当等于（）
A.预计总产值-目标利润
B.预计销售收入-目标利润
C.预计销售收入-预计总成本
D.变动成本总额+固定成本总额
