下述传染病中，病后可有较持久免疫力的是
A．霍乱
B．脊髓灰质炎
C．细菌性痢疾
D．伤寒
E．钩端螺旋体病(同型)
参考答案：B,D,E
_________ to supporting the growing number of students seeking odd jobs, we will provide them
with the information they need. [ ]
A. Committing
B. Committed
C. Being committed
D. Having committed
在下列小说中，巧妙地运用了“一虚一实，双线并行”构思方式的是( )
A．《婴宁》
B．《金鲤鱼的百裥裙》
C．《苦恼》
D．《麦琪的礼物》
