[单项选择]Canada was divided into Upper Canada and Lower Canada in 1791 and they were united again in 1840. Upper Canada is under the control of （　） government and Lower Canada is under the control of （　） government.
A. British, French
B. French, British
C. British, Spanish
D. Spanish, British

[单项选择]

A modern supermarket can be divided into three main sections: the entrance-exit area (including checkstands), the space along the four walls, and the central area that consists of long rows of two-sided shelves with aisles between them.
The entrance of a supermarket always leads customers directly to the shopping carts and shopping baskets. Sometimes it is impossible to leave through the entrance because the automatic doors open only one way or because there is a turnstile inside the market that moves in one direction only.
The walls near the entrance and exit are reserved for large and heavy items, so that customers can pick up these kinds of items on their way out. Ordinarily the back wall of a supermarket is reserved for meats. The meats are always arranged according to kind. Poultry, such as chicken and turkey, is in one part of the meat section. Pork is in another part, and lamb and beef in another. In the American supermarket, there is more beef than other k
A. Rows of Aisles.
B. The Meat Section of a Supermarket.
C. The Organization of a Supermarket.
D. " One-stop Shopping"—Why Not Drop In and Look Around

[填空题]Causes of depression can be divided into two categories, internal factors and external ones.

[填空题]Drugs can be divided into three main groups: those that a person can buy without a prescription. those that a person needs a doctor’s prescription for, and those that are illegal.
Two popular nonprescription drugs are caffeine (咖啡因) and alcohol. Caffeine is found in coffee, tea, chocolate, and cola drinks. It is a mental stimulant; it stimulates the central nervous system and makes people feel alert. Students, for example, often find they can study better if they have a cup of coffee. On the other hand, caffeine can also make people nervous and irritable. If people drink too much caffeine, they may have trouble sleeping.
Alcohol is a depressant; it depresses the central nervous system. When people drink, they have less control over their actions. They cannot walk in a straight line and they cannot drive as well as when they are alcohol-free in their blood. People who drink a great deal sometimes fall into a deep sleep. Later, they may wake up with a strong headache.