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【单选题】
对甲、乙、丙三种材料进行抗渗性测试，三者的渗水面积和渗水时间都一样，渗水总量分别是30px3、1.Ocm3、37.5px3,试件厚度分别是50px、62.5px、3.Ocm，静水压力水头分别是7500px、8750px、6250px，三种材料的抗渗性比较为( )。
A.
甲、乙相同，丙最差
B.
，甲其次，丙最差
C.
甲最好，丙其次，乙最差
D.
甲、丙相同，乙最好
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举一反三
【多选题】Why do we have a wide use of passive voice in academic English?
A.
Being objective.
B.
The layout of information.
C.
It sounds better.
D.
It is simple and easier.
查看完整题目与答案
【单选题】在pH5.12时电泳,哪种蛋白质既不向正极移动也不向负极移动?( )
A.
血红蛋白（ pI=7.07 ）
B.
鱼精蛋白（ pI=12.20 ）
C.
清蛋白（ pI=4.64 ）
D.
α 1 - 球蛋白（ pI=5.06 ）
E.
β - 球蛋白（ pI=5.12 ）
查看完整题目与答案
【单选题】在 pH5.12 时电泳,哪种蛋白质既不向正极移动也不向负极移动?
A.
血红蛋白（ pI=7.07 ）
B.
鱼精蛋白（ pI=12.20 ）
C.
清蛋白（ pI=4.64 ）
D.
β - 球蛋白（ pI=5.12 ）
查看完整题目与答案
【单选题】滚动轴承的基本代号由( )组成
A.
（1）类型代号、尺寸系列代号和内径代号
B.
（2）前置代号、尺寸系列代号和后置代号
C.
（3）类型代号、尺寸系列代号和后置代号
D.
（4）前置、基本代号和后置代号
查看完整题目与答案
【多选题】淀粉质原料糖化方法可能包括 方法。
A.
添加酸
B.
添加碱
C.
添加糖化曲
D.
添加糖化酶
查看完整题目与答案
【单选题】Why should you use passive voice in a literature review
A.
emphasis should be on the the work
B.
passive is more subjective
C.
passive tense is to match the tense
D.
passive is more reasonable
查看完整题目与答案
【单选题】Why do we use active voice in preference to passive?
A.
Because passive voice is more clear, direct, concise and accurate.
B.
Because active voice is more clear, direct, concise and accurate.
C.
Because what has been done should be emphasized.
查看完整题目与答案
【单选题】Why are passive candidates inactively pursuing a job opportunity?
A.
Because they already have jobs.
B.
Because they may be satisfied with their jobs at present.
C.
Because they are often loyal employees.
D.
All of the above.
查看完整题目与答案
【单选题】Why is passive used on passive interfaces participating in EIGRP?
A.
To stop unwanted route information from entering the specified interface
B.
To allow route information to be filtered by an access list
C.
To allow routes to be sent out the specified interface but deny route information to enter the interface
D.
To allow the interface to be advertised in EIGRP updates but not to send or receive EIGRP updates itself
查看完整题目与答案
【单选题】Why do we need active sleep?
A.
To prepare for passive sleep.
B.
To rest our body.
C.
To stay healthy.
D.
To help us rest our minds.
查看完整题目与答案
相关题目：
【多选题】Why do we have a wide use of passive voice in academic English?
A.
Being objective.
B.
The layout of information.
C.
It sounds better.
D.
It is simple and easier.
查看完整题目与答案
【单选题】在pH5.12时电泳,哪种蛋白质既不向正极移动也不向负极移动?( )
A.
血红蛋白（ pI=7.07 ）
B.
鱼精蛋白（ pI=12.20 ）
C.
清蛋白（ pI=4.64 ）
D.
α 1 - 球蛋白（ pI=5.06 ）
E.
β - 球蛋白（ pI=5.12 ）
查看完整题目与答案
【单选题】在 pH5.12 时电泳,哪种蛋白质既不向正极移动也不向负极移动?
A.
血红蛋白（ pI=7.07 ）
B.
鱼精蛋白（ pI=12.20 ）
C.
清蛋白（ pI=4.64 ）
D.
β - 球蛋白（ pI=5.12 ）
查看完整题目与答案
【单选题】滚动轴承的基本代号由( )组成
A.
（1）类型代号、尺寸系列代号和内径代号
B.
（2）前置代号、尺寸系列代号和后置代号
C.
（3）类型代号、尺寸系列代号和后置代号
D.
（4）前置、基本代号和后置代号
查看完整题目与答案
【多选题】淀粉质原料糖化方法可能包括 方法。
A.
添加酸
B.
添加碱
C.
添加糖化曲
D.
添加糖化酶
查看完整题目与答案
【单选题】Why should you use passive voice in a literature review
A.
emphasis should be on the the work
B.
passive is more subjective
C.
passive tense is to match the tense
D.
passive is more reasonable
查看完整题目与答案
【单选题】Why do we use active voice in preference to passive?
A.
Because passive voice is more clear, direct, concise and accurate.
B.
Because active voice is more clear, direct, concise and accurate.
C.
Because what has been done should be emphasized.
查看完整题目与答案
【单选题】Why are passive candidates inactively pursuing a job opportunity?
A.
Because they already have jobs.
B.
Because they may be satisfied with their jobs at present.
C.
Because they are often loyal employees.
D.
All of the above.
查看完整题目与答案
【单选题】Why is passive used on passive interfaces participating in EIGRP?
A.
To stop unwanted route information from entering the specified interface
B.
To allow route information to be filtered by an access list
C.
To allow routes to be sent out the specified interface but deny route information to enter the interface
D.
To allow the interface to be advertised in EIGRP updates but not to send or receive EIGRP updates itself
查看完整题目与答案
【单选题】Why do we need active sleep?
A.
To prepare for passive sleep.
B.
To rest our body.
C.
To stay healthy.
D.
To help us rest our minds.
查看完整题目与答案