关于"法"的起源，法家认为（）。 A.人类社会之初并没有法 B.法是社会发展到一定阶

In order to support the big family, he worked so hard that _____ he made himself ill. [ ]

A. occasionally

B. purposefully

C. normally

D. eventually

一般不会导致肺癌发病的因素是（）

A.吸烟

B.饮酒

C.长期接触石油

D.饮食少维生素A的食物

E.电离辐射

销售商品的售后回购的收入确认应符合（）要求。

A.谨慎性

B.相关性

C.实质重于形式

D.可靠性

阅读短文，根据短文内容和已给出的首字母，在空白处填入适当的单词。

Tom is a student of Hongqi Middle school. He u______小题1:to be interested in comics about insects. He often borrowed some because he couldn’t a_______小题2:to buy too many comics. Every day he wasted most of his time on these comics and was not patient with h _______小题3:in his study.

One day Tom caught an insect at school and c_______小题4:lots of trouble. To his s_______小题5:, the insect died half an hour later. That night, Tom had a bad dream. He was so t________小题6: of it. Then he went to sleep with his bedroom light o________小题7:.

Tom knew it was the insect’s d_______小题8: that terrified him. Also, Tom found it was necessary for him to p______小题9: attention to his daily studies. Only in this way could he forget that insect. In the e______小题10:, Tom made a decision to change himself.

Now Tom has become one of the best students in his class.

下列各项中，不属感染性发热疾病的是（）。

A.疟疾

B.猩红热

C.病毒性肝炎

D.广泛性皮炎

E.伤寒