【題目】北京時(shí)間2011年11月3日1時(shí)36分6秒，“天宮一號(hào)”目標(biāo)飛行器與“神舟八號(hào)”飛船成功實(shí)現(xiàn)首次會(huì)對(duì)接，右圖是“神舟八號(hào)”與“天玄一號(hào)”首次對(duì)接空間位置示意圖。讀圖回答下列各題。

【1】

A. ①線(xiàn) B. ②線(xiàn) C. ③線(xiàn) D. ④線(xiàn)

【2】

A. 云霧 B. 流星 C. 太陽(yáng)輻射 D. 太陽(yáng)活動(dòng)

【答案】

【1】A

【2】C

【解析】試題分析:

【1】晨線(xiàn)與赤道的交點(diǎn)所在經(jīng)線(xiàn)地方時(shí)為6點(diǎn)。當(dāng)北京時(shí)間（東經(jīng)120°經(jīng)線(xiàn)的地方時(shí)）為1時(shí)36分6秒時(shí)，地方時(shí)為當(dāng)天6時(shí)所在經(jīng)線(xiàn)應(yīng)該位于180°附近，所以A選項(xiàng)最合理。另②和④線(xiàn)與北極圈相切，應(yīng)該表示的是12月22日左右的狀況。

【2】太陽(yáng)活動(dòng)強(qiáng)烈時(shí)，爆發(fā)的電磁波會(huì)引起電離層的擾動(dòng)，引起無(wú)線(xiàn)電短波通信的中斷，干擾航天器和地面指揮系統(tǒng)的通信聯(lián)系，航天器和地面指揮系統(tǒng)聯(lián)系主要靠無(wú)線(xiàn)短波進(jìn)行，會(huì)受到太陽(yáng)活動(dòng)的干擾導(dǎo)致通訊衰減或中斷。故C項(xiàng)正確。云霧、流星、太陽(yáng)輻射均對(duì)通信沒(méi)有影響。

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