下列哪一项不包括在生物多样性中( )
A．遗传多样性 B．物种多样性C．种群多样性 D．群落与生态系统多样性
参考答案：C
The immobile adolescent with a recent fractured femur suddenly complains chest pain, dyspnea, diaphoresis, and tachycardi
a. Which of the following would the nurse suspectA. Atelectasis.B. Pneumonia.C. Pulmonary edema.D. Pulmonary embol
气相色谱仪由哪些部分构成？
