[单项选择]People called the new kind of bicycle made in about 1876 a "safety bicycle" because the ______.
A. riders would not fall
B. wheels had hard rubber tyres
C. riders could touch the ground easily
D. wheels were the same size as the "Penny Farthing"

[单项选择]Who have made the new plan to change the sanctions program against Iraq


A. The United States.
B. Britain.
C. China.
D. Russia.

[单项选择]Whether right or wrong, he has some new ideas about how the lesson should be_________.
A. deducted
B. concluded
C. conducted
D. deduced

[单项选择]Some people would rather ride bicycles as bicycle riding has ______ of the trouble of taking buses.
A. nothing
B. none
C. some
D. neither

[单项选择]This kind of animal became {{U}}extinct{{/U}} about 500 years ago.
A. exact
B. unfrequented
C. no longer existing
D. tender

[单项选择]There is evidence that this kind of new medicine has no side ______ on the patient.
A. affect
B. effect
C. infect
D. detect

[单项选择]There is evidence that this kind of new machine has no side ______ on the patient.
A. affect
B. effect
C. infect
D. detect

[单项选择]What kind of writings are the two excerpts called
A. Reviews.
B. Anecdotes.
C. Comments.
D. Allusions.

[单项选择]What kind of view is made possible by contiguous cross sections of the body
A. Two-dimensional.
B. Three-dimensional.
C. Animated.
D. Intensified.

[单项选择]______ this kind of telephone made in China

[单项选择]This kind of camera is made ______ Shanghai.

[单项选择]The new chemical will exterminate this kind of insects in this area.
A. eliminate
B. prosecute
C. quench
D. quit

[单项选择]The tailor made him a new ______.
A. clothes
B. wear
C. dress
D. suit

[单项选择]

Passage Five
A new kind of radar has been developed for spaceship travelers. A working laboratory model of a new system of radar that makes use of a beam of light is said to be ten thousand times more accurate than the best comparable system of radar that used microwaves.
The model has shown that this radar system, known as laser-doppler radar, can measure with absolute precision speeds varying from spaceship orbital injection (进入) velocities (速度) of five miles per second down to virtual stops--speeds of less than one ten thousandth of an inch per second. According to the scientists who are developing this system, such fine measures of velocity are of prime importance in space missions. In a rendezvous (对接) between two spaceships, or in a landing approach by a vehicle onto an orbiting space station, a bump could rip open a ship’s skin, or a nudge could knock the station out of its orbit.
The light-beam radar, which operates at a frequency of t
A. accuracy ill speed measurement is essential to spaceships
B. the speeds of space vehicles will vary
C. inaccuracies in measurement could cause accidents in space missions
D. a bump could affect the preciseness of the laser-doppler radar