According to the passage, what is the most direct impact of urban deforestation？
A. Worsening of air quality.
B. Rise in temperature.
C. Unshaded asphalt.
D. Huge demand for thermometer.
查看答案
A．Domestic consumer market share.B．Turnover.C．Profits.D．Costs.
A. Domestic consumer market share.
B. Turnover.
C. Profits.
D. Costs.
A．thisB．theseC．that
A. this
B. these
C. that
A．alreadyB．stillC．yet
A. already
B. still
C. yet
What did Stephen Kajlura and Kim Holland initially want to prove by the experiment？
A. hammerheads have slender bodies than sandbar sharks.
B. hammerheads could sense subtler electric fields than sandbar sharks.
C. hammerheads could sweep more food than sandbar sharks.
D. adult hammerheads may have more advantages than young hammerheads.
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