更多"The difference between a liquid and"的相关试题:
[单项选择] The difference between a liquid and a gas is obvious (1)_______ the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and (2)_______it to the level of a free surface. A gas forms no free surface but (3)_______to diffuse throughout the space available; it must (4)________be kept in a closed container, as (5)________a planet’’s atmosphere. The distinction was a prominent feature of early theories (6)_______ the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory held that the two phases are (7)_______different kinds of molecules(分子). The theories now prevailing (8)_______a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter that have no permanent structure, and they both flow easily. They are fluids. The (9)_______similarity of liquid
A. Similarly
B. In contrast
C. Furthermore
D. Instead