题目:
《药品管理法》规定,生产药品所需的原、辅料必须符合
A.药理标准
B.化学标准
C.食用要求
D.药用要求
E.生产要求
答案:
参考答案:D
解析:根据《药品管理法》规定,生产药品所需的原、辅料必须符合药用要求的规定。
《药品管理法》规定,生产药品所需的原、辅料必须符合
A.药理标准
B.化学标准
C.食用要求
D.药用要求
E.生产要求
参考答案:D
解析:根据《药品管理法》规定,生产药品所需的原、辅料必须符合药用要求的规定。
— ______ room is it?
— It's ______. [ ]
A. Whose, Peter's
B. Whose, Peter
C. Who's, Peter
D. Who's, Peter's
When we look at the sky and see a bright light moving quickly across it or coming towards the earth, we talk about seeing a “shooting star” or a “falling star”. These moving lights are not, in fact, stars at all. They are small pieces of matter from outer space, which burn up as they enter the Earth’s atmosphere. The correct name of them is meteoroids. Any pieces that make it to the Earth’s surface without completely burning up are known as meteorites. A meteor is actually the name given to the light we see when a meteoroid is burning up.
When a meteorite hits the Earth at speeds between 11 and 72 kilometers a second, it can do amazing damage. A very large meteorite could knock the earth out of its orbit. If this happened, all life on Earth would probably become extinct(灭绝). The path we follow around the Sun would change and as a result the Earth would become either much hotter or much colder. This change in temperature would affect sea levels and the amount of water in rivers. There would either be huge floods, which would cover most of the land with water, or the oceans would dry up and there would be a drought, which means a long period of time without rain. Either way, nothing could survive. If a large meteorite landed in the sea it would almost certainly cause tsunamis, which would race towards the land, destroying everything in their paths.
Although it is unlikely the Earth will be struck by a meteorite large enough to do that kind of damage, there is evidence of fairly large meteorites hitting the Earth in the past. In 1908 a large area of forest in Tunguska, Siberia was destroyed by a meteorite that came apart just before it hit the ground. The moon, however, has about three billion craters陨石坑caused by meteorites impacting影响 its surface. The reason more meteorites have reached the surface of the moon than the surface of the Earth is that the moon does not have enough atmosphere for the meteorites to burn up in. some of the meteorites that have reached the Earth’s surface have done considerable damage. Some scientists believe it was a change of climate caused by meteorites hitting the Earth that resulted in the extinction of the dinosaurs and other large prehistoric animals.
Scientists are especially interested in meteorites because they contain information about the solar system. It is widely believed by scientists that most meteorites are produced by collisions(碰撞) between asteroids (small planets). These collisions probably happened many billions of years ago. This means the physical and chemical structure of a meteorite can give scientists information about the early days of the universe.
小题1:The story is about ___.
A.floods caused by meteors
B.matter from outer space
C.life on Earth millions of years ago
D.meteorites that have damaged the moon小题2:The Earth has ___.
A.three billion craters
B.fewer craters than the moon
C.more craters than the moon
D.a thinner atmosphere than the moon小题3:Some scientists believe the dinosaurs became extinct because ___.
A.they were hit by meteors
B.meteorites landed on their nests
C.meteorites landed and changed the climate
D.they could no longer breathe the atmosphere小题4:Meteors are ___.
A.small planets
B.the same as asteroids
C.from broken parts of asteroids
D.the light we see when meteoroids hit our atmosphere
在制定低洼区排水方案时,()适用于土方来源充足、价格低廉,天然地面高程与一定频率洪水位高差不大的城市。
A.填方
B.自排
C.强排
D.调蓄
就建设工程质量的形成过程,下列描述错误的是( )。
A.建设工程项目质量目标实现的最重要和关键的过程是在施工阶段
B.建设工程项目质量目标的具体定义首先是在建设工程的决策阶段
C.建设工程质量的形成过程贯穿于建设工程项目的决策阶段和实施阶段
D.质量目标的决策是建设单位的质量管理职能
以下哪一条是希腊雕刻体现的古典风范()。
A、崇高而悲壮
B、威严而冷峻
C、优美而典雅
B、活泼而流畅