城市污水的物理处理方法是利用物理作用分离和去除潜水中污染物质的方法,常用方法有( )。
A.沉砂截留
B.筛滤截留
C.重力分离
D.格栅分离
E.离心分离
参考答案:B,C,E
小儿10个月,低热7天,时有呕吐、咳嗽,家中无结核病人。查体:烦躁不安,前囟稍隆起,颈有抵抗,心、肺无异常,肝、脾轻度肿大。脑脊液:外观清亮,WBC250×106/L,中性0.30,淋巴0.70,潘氏试验(+)。氯化物95.8mmol/L,糖1.63mmol/L。PPD试验(-)。最可能的诊断是()
A.化脓性脑膜炎
B.病毒性脑炎
C.结核性脑膜炎
D.隐球菌性脑膜炎
E.中毒性脑病
所给单词的适当形式填空。
1. He often goes______ (swim),but he's not agood_____ (swim).
2. Wang Junxia won the_____ (woman)5,000metre race at the Olympics
3. LiuXiang_____ (surprise) everyone at the 2004 Olympics in Athens.
4. Before the Olympics, her best time had been_____ (slow) than Miss Thompson's.
5. We were very_____ (excite)at that time.