Today we know more about ______. We’re better at preventing illness.A: pollutionB: environmentC: populationD: medicine
Today we know more about ______. We’re better at preventing illness.
A: pollution
B: environment
C: population
D: medicine
相关考题：
我们从特供商场购买食品，并加强对所购食品的检查A.We’ll buy all the food from supermarket and check all the food we buy carefullyB.We’ll buy all the food from foreign countries and check all the food we buy carefullyC.We’ll import all the food and check all the food we buy carefullyD.We’ll buy all the food from exclusive shops and check all the food we buy carefully
Any open flame can’t exist in this business buildingA.Yes. We’ve removed all the flammable gas.B.Yes. We’ve searched everywhere for flammable liquidC.Yes. All the flammable liquid and gas have been removed already.D.Yes. We’ve removed all the liquid, gas and wood which can be burned
The problem is so serious that the situation is out of control.A.We’ve got to set up a police line and ask for aidB.We’ve got to ask for back-up from the PLA and policeC.We’ve got to report to the superiors rapidly and ask for back-upD.We have informed the authorities to take precautionary measures.
We're going to _____ with _____ today, aren't we?A. the tea…the SmithsB. tea…those SmithsC. a tea…a SmithD. tea…the Smiths
____ were all very tired, but none of ____ would stop to take a rest. A、We ; usB、Us ; weC、We ; ourD、We ; we
We' re____50 new staff this year as business grows.A. taking over B. taking in C. taking on D. taking up
8、船池中进行船模试验, 分别假设流动:1)重力起主导作用；2)粘性力起主导作用; 3)表面张力起主导作用。应分别考虑什么相似准则数（）A．Fr数、Re数、Eu数B．Fr数、Re数、We数C．Re数、Fr数、We数D．Re数、Fr数、Eu数
船池中进行船模试验, 分别假设流动:1)重力起主导作用；2)粘性力起主导作用; 3)表面张力起主导作用。应分别考虑什么相似准则数（）A．Fr数、Re数、Eu数B．Fr数、Re数、We数C．Re数、Fr数、We数D．Fr数、Eu数