She always makes some _______ over shortages and high prices.

is less easy to subject to shortages caused by strikes and natural disasters

What problems are Asian countries facing according to the United Nations’ report A: Problems of water-shortages. B: Problems of flood, and the loss of farmland. C: Most problems of environment.

The most widespread methods for eliminating labor shortages are hiring temporary workers and outsourcing work.

Food shortages in the capital have led to...................(frustrate)shoppers smashing store windows.

The best irrigation water is river water, pond water and lake water A: 正确 B: 错误

What water is used in the production of injection A: pure water B: purified water C: water for injection D: sterile water for injection

According to the distribution of oil, gas and water, the water at the edge of containing edge is called (). A: External water B: Bottom water C: Edge water D: Edge bottom water

There were food shortages and other d_____ during the war. (an absence or too little of something important)

Which one is not the common source of injection water: A: surface water B: ground water C: distilled water D: oil polluted water