oracle数据库在nomount模式时，以下（）命令将数据库启动到mount模式。

What is your favorite color? Do you like yellow, orange, red? 　 小题1:　Do you prefer grey and blue? Then you are probably quiet, shy, and you would rather follow than lead.  You tend to be a pessimist(悲观者).  At least, this is what psychologists(心理学家)tell us, and they should know, because they have been seriously studying the meaning of color preference, as well as the effect that colors have on human beings. 　 小题2:　If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly.

　小题3:　A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day.

　小题4:　A black bridge over the Thames River, near London, used to be the scene of more suicides(自杀者)than any other bridge in the area—until it was repainted green.  The number of suicide attempts immediately fell sharply.  Perhaps it would have fallen even more if the bridge had been done in pink or baby blue.

　小题5:　It is an established fact(既成的事实)that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or grey.

A．On the other hand, black is depressing.

B．They tell us, among other facts, that we do not choose our favorite color as we grow up—we are born with our preference.

C．The rooms are painted in different colors as you like.

D．If you do, you must be an optimist, a leader, an active person who enjoys life, people and excitement.E. Light and bright colors make people not only happier but more active.

F. Life is like a picture or a poem, full of different colors.

G. Colors do influence our moods—there is no doubt about it.

某一材料采购合同，双方约定违约金为70万元。合同履行过程中因供货方的原因导致不能交货，施工承包人为了避免停工待料，只能以高出原采购合同价100万元的价格采购同样的材料。则供货方应赔偿给施工承包人（ ）。

A．30万元

B．70万元

C．100万元

D．170万元

灾害采访报道中，忽视人的尊严生命的表现

当混凝土路面断裂缝较少时，可沿缝（），再在槽内重新浇筑混凝土。

A.破碎成槽

B.灌浆

C.封堵

D.盖堵

有运转车长值乘列车发现篷布捆绑不牢时应如何处理？