检疫期限是根据()。
A.带菌期;
B.传染期;
C.排菌期;
D.潜伏期;
E.恢复期。
参考答案:D
She is so helpful that she is always ready to help people in trouble. Which of the following is correctfor the underlined word in the sentence?
A./'tr37bl/
B./'tra7bl/
C./'trKbl/
D./'trbl/
按股票市值的大小分类的股票类型不包括()。
A.大盘股
B.小盘股
C.中盘股
D.蓝筹股