慢性肾小球病变时，肾皮质回声常明显增强，应选用哪一脏器的回声与肾皮质对比最佳（）
A.肝脏
B.脾脏
C.胰腺
D.对侧肾皮质
E.肾周脂肪
参考答案：B
进程是系统进行资源分配和调度的基本单位。进程由程序块、______和数据块三部分组成。
Our teachers are very strict ______ us in class, but they are kind _____ everyone after class.
A． with; to
B． to; with
C． to; to
D． with; with
