[填空题]Scientists are growing concerned about other gases produced from ______.

[填空题]The scientists, concerned about the potential hazards, wanted the latest research finding made publicly. A. concerned about B. the latest C. made D. publicly

[简答题]

The scientists, (concerned about) the potential hazards, wanted (the latest) research finding (made) (publicly).
A. concerned about
B. the latest
C. made
D. publicly

[填空题]Environmental scientists are concerned that if industrial pollution was to continue without effective measures, the Earth’s surface would warm up to a dangerous degree in the next few centuries.

[单项选择]What surprises Martha about other companies
A. They don’t monitor their competitor’s activities.
B. They are unaware of their won weaknesses.
C. They don’ t act on the information they hav

[填空题]

A. Concerned citizens and scientists have begun to take action. A wide range of solutions is being proposed to stop the destruction of biodiversity at the regional as well as the global level. Since 1985,the effort has become more precisely charted, economically efficient, and politically sensitive.
B. The new biodiversity studies will lead logically to an electronic encyclopedia of life designed to organize and make immediately available everything known about each of the millions of species. The industrialized countries will lead for a time. However, the bulk of the work must eventually be done in the developing countries. The latter contains most of the world species, and they are destined to benefit soonest from the research. The technology needed is relatively inexpensive, and its transfer can be accomplished quickly. The discoveries generated can be applied directly to meet the concerns of greatest importance to the geographic region in which the research is conduct