( )是决定城市土地利用价值的重要因素。
A．城镇规划
B．土地承载力
C．区位
D．环境质量
参考答案：C
— Can you see _____?
— No. Let's go and have a look. Maybe we can help them.[ ]
A. what was going on there
B. what are they doing there
C. what were they doing there
D. what is going on there
铜绿假单胞菌引起的肺炎宜选用（ ）
A．两性霉素B
B．甲硝唑
C．万古霉素
D．阿奇霉素
E．头孢他定
