海洋：水：氧气（） A．生物：植物：微生物 B．军队：战士：武器 C．草原：牧草：叶

已知方程2x²+x+m=0有一个根是1，则另一个根是 _________ ，m= _________ ．

用下列所给词的适当形式填空，每个字仅用一次。

Dear Sally,

Thanks for your photo. It is a nice one. Here 小题1:   a photo of my   小题2:. You   小题3: see four people in the photo.   小题4:  are my parents, my sister and I. My father is   小题5:      English teacher. My mother works in a   小题6: , too, but she isn’t a teacher. The girl beside me is my sister.   小题7:  name is Alice. We are students. Alice is in Class One and I’m in Class   小题8: . We  have a pet dog. Coco is the   小题9:  of our dog.   小题10:  is it? It is in front of my mother.

Yours 

Jenny

对于（）的防毒面具，请仔细检查连接部位及呼气阀、吸气阀的密合性，并将防毒面具放于洁净的地方以便下次使用。

A、放置

B、风干

C、使用后

D、清洗

患者，男，30岁，右下腹持续隐痛，轻度阵发性加剧，有轻度发热，恶心，胃纳不香，大便干结，小便微黄，苔白厚腻，脉弦滑，宜选（）

A.芒硝

B.大黄

C.火麻仁

D.商陆

E.石膏