【简答题】On the afternoon of September27, 2008, Astronaut Zhai Zhigang became the first Chinese man to walk in space on Saturday, clambering(爬上,攀登) out of China's Shenzhou VII space craft in a technological fe...
【单选题】 By 27 September 20X7 internal evidence had emerged suggesting that Dearing's machine was impaired. Which one of the following would be internal evidence of impairment?
A.
The economic performance of the machine had declined
B.
There were legal and regulatory changes affecting the operating of the machine
C.
There was an unexpected fall in the market value of the machine
D.
New technological innovations were producing better machines