题目内容

已知x+1/x=3,则x4+1/x4等于().

A. 50
B. 49
C. 48
D. 47
E. 46

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In paragraph 6, the author states that evaporative cooling is often accomplished by all of

A. by spreading saliva over the area
B. by urinating on the body
C. by panting or fluttering a pouch
D. by immersing themselves in water

【B13】

A. against
B. throughout
C. for
D. along

【B11】

A. wearing
B. putting
C. clothing
D. dressing

【B15】

A. ice
B. dust
C. snow
D. water

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