能被称为植物养料制造工厂的是（）
A.线粒体
B.根
C.叶绿体
D.细胞核
参考答案：C
He made a promise that he would ________ us with dinner the next day, but he broke his word.[ ]
A．give
B．offer
C．entertain
D．equip
请叙述单纯性肾囊肿的超声表现及鉴别诊断。
