[单项选择]Despite the wide range of reading material specially written or _______ for language learning purposes, there is yet no comprehensive systematic program for the reading skills.
A. appointed
B. assembled
C. acknowledged
D. adapted

[单项选择]Despite the wide range of reading material specially written or ______ for language learning purposes, there is yet no comprehensive systematic program for the reading skills.
A. appointed
B. assembled
C. acknowledged
D. adapted

[单项选择]In spite of the wide range of reading material specially designed or （　） for language learning purposes, there is yet no effective and systematic program for the reading skills.
A. appointed
B. assembled
C. acknowledged
D. adapted

[单项选择]Despite the fact that a wide range of reading materials was specially written or______for language learning purposes, there is yet no comprehensive systematic program for the reading skills.
A. adapted
B. acknowledged
C. assembled
D. appointed

[填空题]Nanotechnology has resulted in a wide range of amazing, practical discoveries such as stain- resistant trousers and self-cleaning toilets.

[单项选择]In the tropic rainforest there is a wide range of species peculiar to this area.（　）
A. specific
B. odd
C. distinct
D. familiar

[填空题]The United States has a wide range of policies that are explicitly designed to promote global corporate responsibility.

[简答题]

Computers exist in a wide range of sizes and power. The smallest are embedded within the circuitry of appliances, such as televisions and wrist watches. These computers are typically preprogrammed for a specific task, such as tuning to a particular television frequency or keeping accurate time.
Programmable computers vary enormously in their computational power, speed, memory, and physical size. The smallest of these computers can be held in one hand and are called personal digital assistants (PDAs). They are used as notepads, scheduling systems, and address books; if equipped with a cellular phone, they can connect to worldwide computer networks to exchange information regardless of location.
Laptop computers and PCs are typically used in businesses and at home to communicate on computer networks, for word processing, to track finances, and to play games. They have large amounts of internal memory to store hundreds of programs and documents. They are equipped wit

[填空题]

Passage 4
Computers exist in a wide range of sizes and power. The smallest are embedded within the circuitry of appliances, such as televisions and wrist watches. These computers are typically preprogrammed for a specific task, such as tuning to a particular television frequency or keeping accurate time.
Programmable computers vary enormously in their computational power, speed, memory, and physical size. The smallest of these computers can be held in one hand and are called personal digital assistants (PDAs). They are used as notepads, scheduling systems, and address books; if equipped with a cellular phone, they can connect to worldwide computer networks to exchange information regardless of location.
Laptop computers and PCs are typically used in businesses and at home to communicate on computer networks, for word processing, to track finances, and to play games. They have large amounts of internal memory to store hundreds of programs a