【单选题】配制300mL0.1mol/LNaOH溶液,需称取固体NaOH的质量为
【判断题】Compared with industry , agriculture is more likely to be affected by a limited water supply. ( )
【单选题】做为一名优秀的药店店员,您认为下列哪项更重要( )
【单选题】——Does agriculture(农业) need a large amount of water? ——Yes, a limited water supply will_________ agriculture.
【单选题】Which of the following statements, according to the passage, is NOT true?
A.
A limited water supply will affect industrial production.
B.
Every large city purifies and reuses its water.
C.
Purified water is not exactly as fresh as spring water.
D.
Oceans are the largest water source.
【单选题】__________ 查看材料
A.
A limited water supply
B.
so that it can be used again just as if it were fresh from a spring
C.
It is possible to purify large amounts of sea water
D.
But even if every large city purified and reused its water
E.
And we cannot even use all of that
F.
Experiments have already been done in this field