[单项选择](Researchers) have found subtle neurological (differences) between the brains of men and women (either) in physical structure and in (the way) they function.
A. Researchers
B. differences
C. either
D. the way

[单项选择]According to David, why do some students have difficulty accepting the "restaurant system"
A. They are not used to having meals with others.
B. It takes them too long to get their food.
C. They are uncomfortable having meals with adults.

[填空题]S1. According to Paragraph 1, there have been different opinions among scientists regarding _______.

[单项选择]

The English have the reputation of being very different from all other nationalities. It is claimed that living on an island separated from the rest of Europe has much to do with it. Whatever the reason is, it may be fairly stated that the Englishman has developed some attitudes and habits distinguishing him from other nationalities.
Broadly speaking, the Englishman is a quiet, shy, reserved person among people he knows well. Before strangers he often seems inhibited, even embarrassed. You have only to witness a railway compartment any morning or evening to see the truth. Serious-looking businessmen and women sit reading their newspapers or dozing(打盹) in a corner; no one speaks. An English wit (风趣的人)once suggested to overseas visitors, "On entering a rail- way compartment, shake hands with all the passengers." Needless to say, he was not being serious. There is an unwritten but clearly understood code of behavior, which, if broken, makes the person immediately t
A. The difference between the English and the other Europeans.
B. The character of English people.
C. The shy Englishman.
D. The code of behavior.