A.questions : replies B.foibles : flaws C.estimations : calculations D.data : hypotheses E. research: findings
单项选择题DECIBEL: SOUND::()
A.color : light B.wavelength : spectrum C.newton : force D.altitude : altimeter E. diameter : cylinder
单项选择题Though managers of commercial shellfish beds in many countries monitor the presence of pollutants using mice, this method is ethically()and too expensive for many developing countries, small operations or amateur fishermen.
A.lucid B.inchoate C.pessimistic D.preemptive E.contentious