同义句转换.

1.It is not possible to clean up the river in two days.

  _______ _______ to clean up the river in two days.

2.It is full of hope for the team to win the match.

  It _______ _______ for the team to win the match.

3.You know these papers can be used again.

  You know these papers can _______ _______.

4.We all hope that the project will be a success.

   We all hope that the project will _______ _______.

5.Drinking polluted water is not healthy.

   Drinking polluted water _______ _______.

在幼儿园里，一男孩2岁，发热伴咳嗽2～3天，初拟诊为上呼吸道感染，次日体温更高，皮肤可见红色斑丘疹，考虑麻疹，即送回家。

在该班里，有2个易感儿，消瘦、平素体质较差，过去经常感冒，患过肺炎，未曾注射麻疹疫苗，目前对他们应立即采取哪项措施（）

A.注射青霉素

B.注射麻疹疫苗.

C.注射免疫血清球蛋白

D.注射干扰素

E.口服核酪糖浆