布卢姆认为几乎所有的学生对几乎所有的学习内容都可以达到掌握的程度是（ ）
A．100%
B．80%—90%
C．70%
D．50%
参考答案：B
The result was not the same as they had expected, ______ was rather disappointing.
A．that
B．which
C．when
D．what
下列厨房用具，在空气中最易锈蚀的是( )
A．铁锅
B．纯铜把手
C．铝壶
D．不锈钢餐具
