（）对环境具有很强的抵抗力，其污染的土壤、水源及场地可形成持久的疫源地。
A.炭疽芽胞
B.大肠杆菌
C.沙门氏菌
D.布氏杆菌
参考答案：A
关于正常产褥，下列哪项正确
A．子产后1周腹部检查扪不到子宫底
B．宫颈外形约于产后3天恢复至未孕状态
C．于产后2周宫颈完全恢复至未孕状态
D．于产后4周除胎盘附着处外，子宫腔表面均由新生的内膜修复
E．子宫体恢复至非孕大小时约需4周
根据句意,用括号内所给单词的正确形式填空。
小题1:My pet cat’s ________(die)kept me sad for a long time.
小题2:Parents should spend more time______(stay)with their children.
小题3:We should ________( allow) to go to the movies on Friday nights.
小题4:He always cares for others but hardly think for_________(he).
小题5:Liu Mei can speak English very well. Her ______ (pronounce) is very good.
