题目内容
18、Carbon dioxide from burning fuels is the most common of the so – called greenhouse gases．
A．producing B．having been produced
C．to be produced D．produced
试题答案
18、D
Carbon dioxide from burning fuels is the most common of the so-called greenhouse gases.
A．produced B．producing C．to be produced D．having been produced
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Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.
|
A．producing |
B．having been produced |
|
C．to be produced |
D．produced |
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Carbon dioxide ________ from burning fuels is the most common of the so?called greenhouse gases.
A．producing
B．having been produced
C．to be produced
D．produced
查看习题详情和答案>>
Carbon dioxide from burning fuels is the most common of the so – called greenhouse gases．
A．producing B．having been produced
C．to be produced D．produced
查看习题详情和答案>>Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.
A. producing B. having been produced
C. to be produced D. produced
查看习题详情和答案>>Carbon dioxide from burning fuels is the most common of the so-called greenhouse gases.
A．produced B．producing C．to be produced D．having been produced
查看习题详情和答案>>Carbon dioxide ___ from burning fuels is the most common of the so-called greenhouse gases.
A. producing B. having been produced
C. to be produced D. produced
查看习题详情和答案>>Carbon dioxide from burning fuels is the most common of the so-called greenhouse gases.
A．produced B．producing C．to be produced D．having been produced
查看习题详情和答案>>