题目内容
（请给出正确答案）
ENERVATE:
A．aggravate
B．stimulate
C．edify
D．applaud
E．disregard
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更多“ENERVATE:A．aggravateB．stimulateC．edifyD．applaudE．disregard”相关的问题
A．aggravate
B．jeopardize
C．manipulate
D．deteriorate
The negative feelings generated during the day tend to ______.
A．aggravate in our unconscious mind
B．develop into happy dreams
C．persist till the time we fall asleep
D．show up in dreams early at night
ENERVATE:
A．strengthen
B．congregate
C．refurbish
D．convalesce
E．revive
The groups move will ______ competition in the fast-growing Chinese PC market.
A．aggravate
B．provoke
C．strengthen
D．intensify
ENERVATE:
A．confer consent
B．supply help
C．reinforce
D．give reimbursement
E．aggravate
A．aggravate
B．alleviate
C．aggregate
D．affiliate
A．aggravate
B．deteriorate
C．decay
D．impair
The writer holds that the potential to make healthy body tissues will______
A．aggravate moral issues of human cloning.
B．bring great benefits to human beings.
C．help scientists decode body instructions.
D．involve employing surgical instruments.
While it's true that just about every cell in the body has the instructions to make a complete human, most of those instructions are inactivated, and with good reason r the last thing you want for your brain cells is to start churning out stomach acid or your nose to turn into a kidney. The only time cells truly have the potential to turn into any and all body parts is very early in a pregnancy, When so-called stem cells haven't begun to specialize.
Yet this untapped potential could be a terrific boon to medicine. Most diseases involve the death of healthy cells-brain cells in Alzheimer's, cardiac cells in heart disease, pancreatic cells in diabetes, to name a few ff doctors could isolate stem cells, then direct their growth, they might be able to furnish patients with healthy replacement tissue.
It was incredibly difficult, but last fall scientists at the University of Wisconsin managed to isolate stem cells and get them to grow into neural, gut, muscle and bone cells. The process still can't be controlled, and may have unforeseen limitations; but if efforts to understand and master stem-cell development prove successful, doctors will have a therapeutic tool of incredible power.
The same applies to cloning, which is really just the other side of the coin; true cloning, as first shown with the sheep Dolly two years ago, involves taking a developed cell and reactivating the genome within, resetting its developmental instructions to a pristine state. Once that happens, the rejuvenated cell can develop into a full-fledged animal, genetically identical to its parent.
For agriculture, in which purely physical characteristics like milk production in a cow or low fat in a hog have real market value, biological carbon copies could become routine within a few years. This past year scientists have done for mice and cows what Ian Wilmut did for Dolly, and other creatures are bound to join the cloned menagerie in the coming year.
Human cloning, on the other hand, may be technically feasible but legally and emotionally more difficult. Still, one day it will happen. The ability to reset body cells to a pristine, undeveloped state could give doctors exactly the same advantages they would get from stem cells: the potential to make healthy body tissues of all sorts, and thus to cure disease. That could prove to be a true "miracle cure".
The writer holds that the potential to make healthy body tissues will ______ .
A．aggravate moral issues of human cloning.
B．bring great benefits to human beings.
C．help scientists decode body instructions.
D．involve employing surgical instruments.
While it's true that just about every cell in the body has the instructions to make a complete human, most of those instructions are inactivated, and with good reason: the last thing you want for your brain cells is to start churning out stomach acid or your nose to turn into a kidney. The only time cells truly have the potential to turn into any and all body parts is very early in a pregnancy, when so-called stem cells haven't begun to specialize.
Yet this untapped potential could be a terrific boon to medicine. Most diseases involve the death of healthy cells-brain cells in Alzheimer's, cardiac cells in heart disease, pancreatic cells in diabetes, to name a few. If doctors could isolate stem cells, then direct their growth, they might be able to furnish patients with healthy replacement tissue.
It was incredibly difficult, but last fall scientists at the University of Wisconsin managed to isolate stem ceils and get them to grow into neural, gut, muscle and bone cells. The process still can't be controlled, and may have unforeseen limitations; but if efforts to understand and master stem-cell development prove successful, doctors will have a therapeutic tool of incredible power.
The same applies to cloning, which is really just the other side of the coin; true cloning, as first shown with the sheep Dolly two years ago, involves taking a developed cell and reactivating the genome within, resetting its developmental instructions to a pristine state. Once that happens, the rejuvenated cell can develop into a full-fledged animal, genetically identical to its parent.
For agriculture, in which purely physical characteristics like milk production in a cow or low fat in a hog have real market value, biological carbon copies could become routine within a few years. This past year scientists have done for mice and cows what Ian Wilmut did for Dolly, and other creatures are bound to join the cloned menagerie in the coming year.
Human cloning, on the other hand, may be technically feasible but legally and emotionally more difficult. Still, one day it will happen. The ability to reset body cells to a pristine, undeveloped state could give doctors exactly the same advantages they would get from stem cells., the potential to make healthy body tissues of all sorts, and thus to cure disease. That could prove to be a true "miracle cure."
The writer holds that the potential to make healthy body tissues will ______.
A．aggravate moral issues of human cloning
B．bring great benefits to human beings
C．help scientists decode body instructions
D．involve employing surgical instruments
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