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【单选题】
( ) energy under the earth must be released in one form or another, for example, an earthquake.A.
Gathered
B.
Accumulated
C.
Collected
D.
Assembled
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举一反三
【简答题】总挥发性有机物的缩写是_________。
【简答题】总挥发性有机化合物 的英文缩写是
【单选题】Stress can be extremely damaging to your health. Exercise, _, can reduce its effects.
A.
at the same time
B.
while
C.
though
D.
meanwhile
【单选题】According to the passage, the followings are the methods to reduce the costs EXCEPT ______.
A.
many physicians now practice in groups where they share the same Offices and equipment with other doctors
B.
reducing the number of patients admitted to hospitals
C.
decreasing the length of patients' stay in hospital
D.
hospitals offer patients 24-hour care from a staff of health professionals
【单选题】改变农业以太阳光为直接能源，利用绿色植物通过光合作用生产人类食物、动物饲料的传统方式，应用高科技进行开发，依靠人工能源不受气象和季节的限制。可常年在工厂进行大规模生产，节土、节水、不污染环境，资源可循环利用的微生物工业型的农业叫做：
A.
绿色农业
B.
白色农业
C.
生态农业
D.
生物农业
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