正常人脑、肝、脂肪声衰减程度比较
A．脂肪＞肝＞脑
B．肝＝脑＞脂肪
C．肝＞脂肪＞脑
D．肝＞脂肪＞脑
E．脑＞肝＞脂肪
参考答案：B
Having a large family to support, Mr. Johnson had to work______ in the evening. [ ]
A. four another hours
B. more four hours
C. other four hours
D. four extra hours
债权在民事权利的分类中属于( )。
A．支配权
B．请求权
C．形成权
D．抗辩权
