问答题

Correct the mistakes in the following sentences. Underline the wrong parts and put the correct ones in the brackets.(10%) Industrial buyers are responsible for supplying the goods and services that an organization required for its operations.

【参考答案】

正确答案：required--requires
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单项选择题
The passage suggests that photographers such as Walker Evans prefer old-fashioned techniques and equipment because these photographers______.
A．dislike the dependence of photographic effectiveness on the powers of a machine
B．strive for intense formal beauty in their photographs
C．like the discipline that comes from self-imposed limitation
D．need to feel armed by technology
问答题
Luminescence refers to the emission of light by means another than heat.
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