问题
单项选择题
Dubai is the capital of the United Arab Emirates, one of the world's leading______oil producers.
A．raw
B．crude
C．rough
D．primitive
答案
参考答案：B
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Dubai is the capital of the United Arab Emirates, one of the world's leading______oil producers.
A．raw
B．crude
C．rough
D．primitive
参考答案：B