一天中午放学时，八年级学生小凡的父亲冒雨送伞。小凡接过雨伞，瞪着眼对父亲说：“你

I think ___ knowledge of the Internet is ____ must in our work today.

A．a…..a

B．the….an

C．the….the

D．/…an

My children are小题1:   up fast. My daughter is 16 and my boy is already in junior high school. As they get bigger our house seems to get小题2:  . So we want to sell some of our things in a yard sale and give the money to a小题3:     home.

We have already cleared out a lot of things from our bedrooms. We have 小题4:   to each sell five things that we no longer use. My son was quite 小题5:   at first. Although he has not played with his old toys for a long time, he still wanted to keep them. For example, he has owned a train and railway set since his小题6:   birthday, and he played with it almost every week until he was about seven. And he did not want to lose his toy monkey, either.

He 小题7:    next to the monkey every night when he was a child. My daughter was more understanding, although she also felt sad to part with小题8:    toys.

As for 小题9:   , I did not want to give up my football shirts, but, to be小题10:   , I have not played for a while now. I am getting older, too!

下列因素对感染病程演变影响不大的是（）

A.致病菌的种类、菌株、数量、繁殖速度和毒素的性质

B.局部组织结构、血液循环和局部受伤情况

C.患者的体重、身高、生活饮食习惯

D.及时和正确的治疗

E.患有慢性消耗性疾病、贫血、血浆蛋白减少、维生素C严重缺乏等

已知：a∥b∥c，a与b之间的距离为3cm，b与c之间的距离为4cm，则a与c之间的距离为______．

银杏+对乙酰氨基酚（）

A．产生有利的药物相互作用

B．抑制乙醛脱氢酶

C．造成听神经和肾功能不可逆损害

D．抑制氧化代谢反应

E．诱发硬膜下血肿