Why does the matching still exist in Korea（） A: Because most people want to keep the bloodlines pure and chance encounters romantic. B: Because most people try to avoid romance and keep the bloodlines pure. C: Because most people regard marriage as continuing family lineage and romance. D: Because most people try to break family lineage and bloodlines.

Pure Competition

There are ______ pure vowels in English.

absolutely clean or pure

Which of the following does not belong to natural fabric.( ) A: Synthetic fiber B: Pure cotton C: Pure hemp D: Cashmere

We can learn from the passage that______. A: both pure scientists and applied scientists are not equally important B: the aircraft designer stands for the pure scientist C: geophysics and biochemistry are examples of' new specialties D: pure scientists are more important

Allan Poe advocated “pure” poetry.

The core is composed of pure nickel and iron.

Directed research may become a danger to the future of science because______. A: pure research may be neglected under this system B: the division between the pure and the applied scientist will disappear C: the interdependence of pure and applied science may be ignored D: both A and C

There is a _________ of scientific research from the pure to the applied field.