At a scientific meeting, Professor Rontegen called this new ray "the unknown", the X-ray. (49) , and soon there were X-ray machines in all the big hospitals. The most obvious use for this discovery was to enable doctors to see exactly how a bone was fractured. Other uses came later. It was found that these rays could be used to destroy cancer cells, just as they destroyed the healthy cells of the doctors who first used the machines. (50) , and the lungs could be X-rayed to show if there was any tuberculosis present.
A. It was on this paper that the lights were shining
B. She was very surprised by this request
C. Now the bulb was completely covered
D. It was a great invention
E. Methods were found later by which ulcers in the stomach could be located
F. Doctors quickly saw how this could be used
(46)
第1题
三大营养素占热能比例为
A.糖60%~65%,蛋白质10%~25%,脂肪12%~15%
B.糖40%~60%,蛋白质20%~30%,脂肪10%~20%
C.糖60%~65%,蛋白质10%~15%,脂肪15%~25%
D.糖40%~50%,蛋白质10%~20%,脂肪20%~30%
E.糖50%~60%,蛋白质20%~30%,脂肪10%~20%
第2题
三大营养素占热能比例为
A.糖60%~65%,蛋白质10%~25%,脂肪12%~15%
B.糖40%~60%,蛋白质20%~30%,脂肪1 0%~20%
C.糖60%~65%,蛋白质10%~15%,脂肪15%一25%
D.糖40%一50%,蛋白质10%~20%,脂肪20%~30%
E.糖50%~60%,蛋白质20%一30%,脂肪10%~20%
第3题
三大营养素占热能比例为
A.糖60%~65%,蛋白质10%~25%,脂肪12%~15%
B.糖40%~60%,蛋白质20%~30%,脂肪1 0%~20%
C.糖60%~65%,蛋白质10%~15%,脂肪15%一25%
D.糖40%一50%,蛋白质10%~20%,脂肪20%~30%
E.糖50%~60%,蛋白质20%一30%,脂肪10%~20%
第4题
三大营养素占热能比例为 ()
A.糖30%~65%,蛋白质5%~25%,脂肪5%~15%
B.糖40%~65%,蛋白质10%~30%,脂肪12%~20%
C.糖60%~65%,蛋白质10%~15%,脂肪15%~25%
D.糖50%~70%,蛋白质15%~20%,脂肪25%~30%
E.糖60%~75%,蛋白质20%~25%,脂肪15%~25%
第5题
三大营养素占热能比例为
A.糖60%~65%,蛋白质10%~25%,脂肪12%~15%
B.糖40%~60%,蛋白质20%~30%,脂肪10%~20%
C.糖60%~70%,蛋白质10%~15%,脂肪20%~25%
D.糖40%~50%,蛋白质10%~20%,脂肪20%~30%
E.糖50%~60%,蛋白质20%~30%,脂肪10%~20%
第6题
三大营养素占热能的比例为()。
A.糖60%~65%,蛋白质10%~25%,脂肪12%~l5%
B.糖40%~60%,蛋白质加%~30%,脂肪10%~20%
C.糖60%~65%,蛋白质10%~l5%,脂肪15%~25%
D.糖40%~50%,蛋白质10%~20%,脂肪20%~30%
E.糖50%~60%,蛋白质20%~30%,脂肪10%~20%
第7题
A.蛋白质10%,脂肪45%,糖类45%
B.蛋白质30%,脂肪30%,糖类40%
C.蛋白质10%,脂肪15%,糖类75%
D.蛋白质15%,脂肪25%,糖类60%
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