Immediately the ship turned, but not soon enough. The iceberg tore a 300-foot hole in the hull and water began to pour in, At fig,st the captain didn't worry because the ship was said to be" unsinkable". Then the ship began to lean, At 12:05 the captain gave the order "Uncover the lifeboats"!
The Wireless operator sent out an SOS signal. Six ships began to race towards the Titanic. But the two ships who were closest did not hear the desperate calls for help.
At two a.m. the captain gave the order "Abandon ship !" A few minutes later the Titanic began to slip beneath the surface. One by one the last passengers jumped into the sea. Then the stem rose up in the air and the Titanic sank quickly out of sight.
At dawn the next morning a rescue boat picked up 705 survivors, from the lifeboats. Most of them were first and second-class passengers. All their children survived. Of the children who traveled third class, only a third survived.
Where was the destination of Titanic?
A.London.
B.Washington.
C.Southampton.
D.New York.
第1題
下面的描述與維修量無(wú)關(guān)的是()。
A.無(wú)須校準(zhǔn),可長(zhǎng)期保持精度
B.可靠性高,使用壽命長(zhǎng)
C.具有編程手段,方便現(xiàn)場(chǎng)調(diào)試
D.可以長(zhǎng)期穩(wěn)定工作
第2題
A、無(wú)需校準(zhǔn),長(zhǎng)期保持精度
B、可靠性高,使用壽命長(zhǎng)
C、具有編程手段,方便現(xiàn)場(chǎng)調(diào)試
D、可以長(zhǎng)期穩(wěn)定工作
第3題
DDC的智能體現(xiàn)重要的一點(diǎn)是()。
A.維護(hù)維修量小,無(wú)需校準(zhǔn),長(zhǎng)期保持精度
B.有擴(kuò)展能力
C.體積小,可靠性高
D.可完成各種邏輯功能,作出復(fù)雜而精確的控制
第4題
A.維護(hù)維修量小,無(wú)需校準(zhǔn),長(zhǎng)期保持精度
B. 有擴(kuò)展能力
C. 體積小,可靠性高
D. 可完成各種邏輯功能,作出復(fù)雜而精確的控制
第5題
A.系統(tǒng)擴(kuò)展能力
B.內(nèi)部時(shí)鐘控制.方便了編程
C.可以任意組合
D.無(wú)需校準(zhǔn).長(zhǎng)期保持精度
第6題
從控制角度來(lái)講,DDC的智能體現(xiàn)除了可完成各種邏輯功能,作出復(fù)雜而精確的控制外,還具有()。
A.系統(tǒng)擴(kuò)展能力
B.內(nèi)部時(shí)鐘控制,方便了編程
C.可以任意組合
D.無(wú)需校準(zhǔn),長(zhǎng)期保持精度
第8題
第10題
A.運(yùn)行可靠性高,壽命長(zhǎng)。具有振動(dòng)小、噪音低,并且提高效率10%以上
B.運(yùn)行可靠性差,壽命短。具有振動(dòng)小、噪音低,并且提高效率10%以上
C.運(yùn)行可靠性高,壽命長(zhǎng)。具有振動(dòng)小、噪音高,并且降低效率10%以上
D.運(yùn)行可靠性高,壽命長(zhǎng)。具有振動(dòng)小、噪音低,并且提高效率10%以上
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