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【单选题】
若原来气缸测得压力较低,由火花塞气缸注入少量润滑油后,若压力无变化说明活塞与缸壁之间密封良好;若压力升高说明( )A.
活塞与缸壁之间漏气
B.
进气门处漏气
C.
排气门处漏气
D.
汽缸垫处漏气
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皮皮学刷刷变学霸
举一反三
【单选题】There are _____ new words in this book. We have already learned two _____ of them. [ ]
A.
hundred; hundred
B.
hundreds of; hundreds
C.
hundreds of; hundred
D.
hundreds; hundreds
【单选题】根据市场风险产生的原因，可以将市场风险分为()。 Ⅰ.利率风险 Ⅱ.汇率风险 Ⅲ.股票价格风险 Ⅳ.商品价格风险
A.
Ⅰ、Ⅱ、Ⅳ
B.
Ⅰ、Ⅱ、Ⅲ、Ⅳ
C.
Ⅱ、Ⅲ
D.
Ⅰ、Ⅲ、Ⅳ
【单选题】We have to learn __________ words this term..
A.
twenty-three thousand and eight hundred and thirteen
B.
twenty-three thousand and eight hundred thirteen
C.
twenty-three thousand eight hundred and thirteen
D.
two three thousand eight hundred and thirteen
【单选题】What we take from and give to the sea As long as we have been on earth，we have used the sea around us．We take from the ocean．and we give to it． We take fishes from the ocean—millions of kilograms of f...
A.
Natural sponges become cleaning aids．
B.
We pollute the ocean when we use it as a garbage dump．
C.
The area of the sea is beoming smaller and smaller．
D.
Along with salt，other minerals are left after evaporation．
E.
We even use their bones for fertilizer．
F.
Some of its contents may cause illness． 第 11 题 请选择（1）处的最佳答案．
【单选题】若 1 美元可以兑换 6.6 元人民币,美国的一篮子商品售价为 100 美元,中国的同样一篮子商品售价为 680 元人民币,则中国实际汇率等于
A.
1.3
B.
1
C.
1.03
D.
0.971
【简答题】市场风险可以分为（ ）。
【单选题】We've tested one hundred types of boots, _______ is completely waterproof (防水的). [ ]
A.
none of them
B.
none of which
C.
no one of which
D.
no one of them
【简答题】市场风险可以分为（ ）。
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