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题目内容
（请给出正确答案）
A、Promising laboratory test results still need to be confirmed by clinical studies before clinical recommendation could be given.
B、It really is still a significant problem in dentistry to bond reliably to oxide ceramics such as alumina and zirconia ceramics.
C、Most original laboratory research reports on bonding to zirconia ceramics start in their introduction with a statement pointing more or less out that achieving a reliable and predictable bond to this ceramic would be a major problem in dentistry.
D、No clinical trials with alumina ceramic IRFDFs or with RBFDPs made from densely sintered alumina ceramic were found.
更多“17. What is the limitation of pervious study？”相关的问题
第1题
W: But I signaled in time! Just look at the mess you've made of my car! You were driving carelessly and your speed was above the limit! You're the one who's to blame!
Q: What are they talking about？
(17)
A．A driving test.
B．A traffic accident.
C．A police movie.
D．The best way to make signals.
第2题
W: But I signaled in time! Just look at the mess you've made of my car! You were driving carelessly and your speed was above the limit! You're the one who is to blame!
Q: What are the two speakers talking about？
(17)
A．A driving test.
B．A traffic accident.
C．A police movie.
D．The best way to make signals.
第3题
W: But I signaled in time! Just look at the mess you've made of my car! You were driving carelessly and your speed was above the limit! You're the one who's to blame!
Q: What are they talking about？
(17)
A．A driving test.
B．A traffic accident.
C．A police movie.
D．The best way to make signals.
第4题
What will the change be？
A．Scholarships will be taxed.
B．There will be a limit to scholarship amounts.
C．Employees may receive a scholarship for one year only.
D．Scholarships will be watched by the Finance Department.
第5题
第6题
Ill help as much as I can, but there is a limit ______ what I can do.
A．to
B．in
C．through
D．on
第8题
A.2500
B.3000
C.5000
D.6500
第10题
What does "to limit their reproduction" in the last paragraph mean？
A．To control death.
B．To produce less goods.
C．To practice birth control.
D．To increase.
第11题
What is specified(指定)on acharge controller(充电控制器)。（）
A.Irradiance limit(辐照度限制)
B.Insolation limit(日照限制)
C.Maximum voltage(最大电压)
D.Minimum current(最小电流)
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