Questions 37-40
Which FOUR of the following statements about termite mounds are true? Write the appropriate letters on your answer sheet in any order.
A. Most mounds are miler than a human.
B. A species of termite builds a mound for only one reason.
C. Mounds are constructed from many different materials.
D. Mounds with rounded tops are useful in wet climates.
E. Termites that build magnetic mounds can detect magnetism.
F. The temperature in a magnetic mound is fairly constant.
G. Very little of a magnetic mound faces the sun during the middle of the day.
H. Termites live in the east and west sides of mounds at different times of day.
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自然人之间的民间借款合同是诺成性合同,贷款人与借款人之间的达成借款合意即可生效。()
与焊条电弧焊、CO2焊等相比,熔化极惰性气体保护焊可以焊接几乎所有的金属。()
为保证一台焊机的温升不超过允许值,断续焊接时,电流可用得小一些。()