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【单选题】
在研磨作业时产生的粉尘对人体有害 , 应用何种方式避免 ?
A.
使用集尘器
B.
用风扇将粉尘吹到别的方向
C.
降低机器转速
D.
以上皆可
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参考答案:
举一反三
【简答题】I suppose that the most basic and powerful way to connect to another person is to listen. Just listen. Perhaps the most important thing we ever give each other is our attention. And especially if it’s...
【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】From 8 pm to 10 pm, Susan can attend a movie, study, or talk with friends. Suppose that Susan decides to go to the movie but thinks that, if she hadn't, she would otherwise have talked with friends. T...
A.
talking with friends and studying.
B.
studying.
C.
talking with friends.
D.
two hours of time.
【单选题】胃癌的发生与哪一种生物因素有关:
A.
HPV
B.
HBV
C.
HP
D.
EB
E.
SARS病毒
【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
【判断题】半导体有两种载流子,一种是带负电的自由电子,另一种是带正电的空穴。
A.
正确
B.
错误
【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...
【判断题】一般情况下,在梯形图中某个编号的继电器线圈只能出现一次,而继电器触点可以无限次引用。
A.
正确
B.
错误
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