What is the purpose of the author by describing Einstein with the sentence "his hair was a mess; he had forgotten to comb it again"?

A. To tell us Einstein was a bushy-haired superthinker.
B. To show Einstein was not a nneat person.
C. To indicate that Einstein was not a space alien.

Albert Einstein couldn't skip a day because he needed the job to __________.

Albert Einstein worked as a " _________" in the Patent Office.

As a young husband and father,Albert Einstein felt much _______ and responsibility.

Einstein's mother had a very harmonious relations with his wife Mileva.

A. 对
B. 错

In the author's boyhood, he didn't have to carry keys with him if he stayed out late at night because ____________.

A. he was not allowed to carry keys with him
B. he was afraid of losing his keys
C. their front door was not locked
D. his parents would unlock the door for him

What can we infer from paragraph 2-3?

A. Nowadays, living in a suburb or country area is as safe as in a city.
B. Nowadays, doors are not unlocked either in cities or in rural areas.
C. Therehasbeenasharpriseinthenumberof suburbs and country areas.
D. The crime rate in rural areas is on the decline.

Suburbs and country areas are more dangerous than urban streets.

A. 对
B. 错