BCG属于（）
A.死菌苗
B.减毒活疫苗
C.类毒素
D.抗毒素
E.荚膜多糖疫苗
参考答案：B
.
Jane has been working for three months without going on holiday . .
She should have taken a vacation ,but she couldn’t ____the time.
A． afford
B．spend
C．take
D．waste
1556年，戚继光任宁绍台参将时，（）任台州知府。
A．阮鹗
B．谭纶
C．胡宗宪
