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【多选题】
新型立轴式钻机有哪些特点A.
深钻机的离合器多采用油浸湿式摩擦离合器。
B.
变速箱采用惯性同步器换挡，实现不停车换档。
C.
升降机多配有配水刹车，部分升降机的抱闸集中或升降机横放。
D.
采用大立轴、圆立轴。
E.
增大了给进系统的给进行程，采用不停车（转）倒杆装置。
F.
液压系统采用变量泵或泵，或增加手动液压泵；给进油缸操纵阀具有“H”型或“Y”型油道可进行无泵减压钻进、差动连接快速倒杆。
G.
多为纯机械传动式钻机。
H.
多为全风动钻机。
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举一反三
【单选题】Suppose that M is fixed but that P falls. According to the quantity equation which of the following could both by themselves explain the decrease in P?
A.
Y rose, V rose
B.
Y fell, V fell
C.
Y rose, V fell
D.
Y fell, V rose
【单选题】Suppose that interest rates rise unexpectedly. Suppose also that IBM announces that revenues from last quarter were down, but that the decline was exactly what the public and analysts had expected. ...
A.
Only the interest rate rising
B.
Only the revenue announcement
C.
Both the interest rate rising and the revenue announcement
D.
Neither the interest rate rising nor the revenue announcement
【多选题】下列关于视图作用描述正确的是:
A.
简化用户的操作
B.
使用户能以多种角度看待同一数据
C.
对重构数据库提供了一定程度的逻辑独立性
D.
视图机制提高了系统的安全性
【简答题】儒家讲的经济就是()。
【单选题】听力原文：W: I want to pay you for that long distance call I made. But I suppose you haven't gotten you phone bill yet. M: Oh, but I have. Q: What does the man mean? (15)
A.
He has got the phone bill.
B.
His calls weren't included.
C.
The woman doesn't need to pay for it.
D.
He has received a long-distance call.
【简答题】材料 为什么要独尊一家呢?因为统一的帝国需要统一的思想,这是秦始皇就已经意识到的。而且,始皇的焚书,武帝的尊儒,动机和说法都一样:天下大乱,皆因思想自由,言论不一。...... 儒学,为什么就合适作统治思想呢?因为儒学是维护君主制度的。......儒家则不同,道为王道,政为仁政,制为礼制,治为德治。也就是说,儒学维护君主制度是讲道理的,也有人情味。这样的统治,人民能够接受。人民能接受,政权就稳...
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