孕妇敏感期也是胎儿发育的关键期是指妇女受孕后（）
A.1个月内
B.2个月内
C.3个月内
D.4个月内
参考答案：A
–In my opinion, China has more _________ to deal with the disease H1N1.
--I quite agree with you. Chinese medicine works well.
A．advantages
B．interests
C．chances
D．culture
下列物料可改善凡士林吸水性的是（）
A.植物油
B.液状石蜡
C.鲸蜡
D.羊毛脂
E.海藻酸钠
