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dawn | mysterious rays |
to penetrate | opaque objects |
thorium | evident |
to conserve residue | self-satisfaction |
pitchblende | to give off |
a triumphant | to go on (with the experiments) |
bacterium | pure |
minute | fascinating |
to draw near | to obtain |
to announce | neighbourhood |
to astonish | radium |
Explain the meaning of the words and phrases.
minute organisms, mysterious, to go on, to announce, pure, to obtain a fraction, a triumphant conclusion, to penetrate, to give off, residue
Match the words with their definitions.
bacterium | a | a blackish mineral that is a type of uraninite and occurs in veins, frequently associated with silver: the principal source of uranium and radium | |
residue | b | to enter into and permeate | |
pitchblende | c | to make known publicly | |
opaque | d | easily seen or understood; obvious | |
to penetrate | e | exceptionally small; tiny | |
evident | f | any of a large group of one-celled organisms that lack a cell nucleus, reproduce by fission or by forming spores, and in some cases cause disease | |
fraction | g | impenetrable by light; neither transparent nor translucent | |
to announce | h | a small part; a bit | |
minute | i | the remainder of something after removal of parts or a part |
Дата публикования: 2014-11-04; Прочитано: 460 | Нарушение авторского права страницы | Мы поможем в написании вашей работы!