A、ATP
B、GTP
C、UTP
D、CTP
E、Creatine phosphate
A、ATP
B、GTP
C、UTP
D、CTP
E、Creatine phosphate
Which of the following best expresses the main idea of this passage?
A.There are many things a homeowner can do to save energy and money.
B.Hiring an energy assessor will save energy and money.
C.Homeowners don"t know what they can do to save energy and money.
D.Replacing windows and light bulbs are well worth the effort and cost.
What's the main idea of the second paragraph?______
A.Fossil energy was once very cheap
B.Farms in dry areas could get cheap water
C.Most American farmers used too much fertilizer and pesticide
D.Mainstream American agriculture used to be wasteful of energy, water and land
A.Protein
B.Fat
C.Carbohydrates
D.parasite's motabolites
A、involve in fatty acid synthesis
B、provide energy
C、maintain reduced glutathione
D、participate in hydroxylation
What is the main cause of unhappiness for many Americans in the authors view?
A.The energy and the genius are always confined by someone.
B.Lack of freedom and stimuli makes people unsatisfied with life.
C.People are obsessed by the thought of getting ahead of their neighbors.
D.People tend to act on dubious principles.
A、are organelles involved in protein synthesis
B、are the cell's main energy source
C、are storage sites for starch
D、are involved in the breakdown of proteins
E、store genetic information in the form of DNA
Which of the following is INCORRECT?
A.Renewable energy has become the main form. of energy in the US.
B.Renewable energy include solar power, geothermal and hydropower.
C.There are still problems remaining to be solved in the use of renewable energy.
D.Renewable energy is valuable.
A.Mouth
B.Heart
C.Nose
D.Lung
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