单项选择题

The writer of this passage wanted to______.

A．take a photograph of the bird
B．make a recording of the bird' s calls
C．catch the bird
D．watch the sunrise
<上一题 目录 下一题>
热门 试题

单项选择题
Which of the following is TRUE
A．The various petroleum products are produced by filtration.
B．Heating and condensation produce the various products.
C．Chemical separation is used to produce the various products.
D．Mechanical means such as the centrifuge are used to produce the various products.
单项选择题
Which of the following is NOT true
A．Crude oil is found below land and water.
B．Crude oil is always found a few hundred feet below the surface.
C．Pumping and pressure force crude oil to the surface.
D．A variety of petroleum products is obtained from crude oil.
相关试题