选择题:The research on the new bird flu virus vaccine is

题目内容:

The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?——____ my students have a try?

A.Shall
B.Must
C.Will
D.May
参考答案:

为评价一种家用“简便”妊娠试验药的效果,现将其试验结果与医院常规的妊娠诊断试验结果进行比较,结果如下

为评价一种家用“简便”妊娠试验药的效果,现将其试验结果与医院常规的妊娠诊断试验结果进行比较,结果如下:药盒检验结果怀孕未怀孕合计医院确诊的怀孕292857,妊娠

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