联合用药
普通感冒患者应用抗病毒药+抗生素属于
A．超剂量用药B．非适应证用药C．过度治疗用药D．超适应证用药E．有目的联合用药
参考答案：B
单词拼写。
1. I h_________ ever eat junk food, because it’s unhealthy food.
2. Maria e__________ every day, so she is in good health.
3. It’s _______（ hot ） in summer in Beijing than that in Dalian.
4. Mary is t_________. Please bring her some water.
5. I can’t go to the movies this Saturday. I have to have my piano l__________.
将电阻R1、R2并联后接到某电源上，干路中的电流为I，则[ ]
A．R1中的电流为
B．电源电压为（）I
C．R2上的电压为IR2
D．R1、R2上的电压之比为R2:R1
）I