对金黄色葡萄球菌肺炎最有诊断价值的是()
A.起病急、病情重
B.血白细胞总数高、核左移
C.喘憋重
D.双肺啰音密集
E.合并脓胸、肺大泡
参考答案:E
---I heard that you made a bicycle trip to the 2010 World Expo of Shanghai alone.
---No. Actually, my friend Bob ________ me.
A.accompanied
B.conducted
C.instructed
D.received
在生产过程中,为了提高植物光合作用的强度,获得蔬菜的丰收,有些菜农在大棚里增施“气肥”.这种“气肥”实质上就是( )
A.氧气
B.氮气
C.水蒸气
D.二氧化碳