减少呼吸道分泌物，抑制副交感神经兴奋的药物是()
A．巴比妥类
B．氯丙嗪
C．阿托品
D．吗啡
E．哌替啶
参考答案：C
何谓温度的铅直梯度？它和干绝热直减率、湿绝热直减率有什么不同？
The shipment was delayed because you had failed ______ the necessary space.
A. to order B. to place C. to take D. to book
