词汇与结构By using _______ control circuits combined with computers, designers can save weight and improve reliability.
A. electronic
B. electrical
C. hydraulic
D. automatic
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词汇与结构A fly-by-wire system actually replaces manual control of the aircraft with an _______ interface.
A. electronic
B. mechanical
C. hydro-mechanical
D. electrical
词汇与结构More independent FBW channels reduce the possibility of overall failure to _______ levels.
A. minimum
B. certain
C. low
D. minuscule
友情链接方面,PR的选择应该优先选择的链接为
A. PR高,相关性低
B. PR低,相关性高
C. RP高,相关性高
以下哪一种行为不是作弊?
A. 采用群发软件群发包含网站链接的内容
B. 使用隐藏文本或隐藏链接
C. 在百度知道、Google论坛等发表文章,并留有链接