凝固区域很宽的合金一般呈糊状凝固。
参考答案：对
Lewis was much admired ______ his work on the advanced medical research.
A．on
B．in
C．for
D．with
叶片肥厚，含水多的叶质为（）。
A.革质
B.草质
C.纸质
D.肉质
