Currently, the frequently used methods for ampoule cleaning mainly include:( ) A: the alternating pressurized water and gas jet B: ultrasonic washing C: water-dumping washing methods D: Washing-free ampoule

What was NOT true about the Thames before the creation of the Victorian sewer system? A: It was a dumping ground for industrial andhuman waste. B: Its water was poisonous to both people and fish. C: It gave off so bad a smell that people couldhardly tolerate it. D: The bad smell from the Thames forced allLondon residents to flee to the countryside.

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

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

It's known to us all _______ a form of energy . A. water is B. that water is C. is water D. that water to

If the cases of imported goods are proved to be true as dumping and high-subsidy, a country may be likely to levy low anti-dumping and anti-subsidy taxes on the imports.

which water is more expensive? A: bottled water B: tap water

4．— Did you have anyone ______the trees? —Yes，l had the trees ______． A． to water ;water B． to water; watered C． water ; to be watered D． water; watered