The chemical bond that keeps stability of primary structure of protein is
A、disulfide bond
B、hydrophobic effect
C、peptide bond
D、hydrogen bond
A、disulfide bond
B、hydrophobic effect
C、peptide bond
D、hydrogen bond
A.Peptide bond
B.disulfide bond
C.phosphoester bond
D.ionic bond
E.hydrophobic force
A.A.bidding upon
B.B.bade upon
C.C.bid upon
D.D.bidded upon
According to the passage, a coupon is ______.
A.part of a bond which shows the profit to the bond owner.
B.a ticket to buy something at a lower price.
C.a ticket that can be used as money.
D.a ticket that shows the face value of a bond.
Why did Coffman request an investigation?
A.To see if there was a deliberate cover-up of the problem.
B.To find out the extent of the consequences of the case.
C.To make sure that the school principals were innocent.
D.To stop the voters approving the $ 212 million bond issue.
A. Chemical bonding mechanism of the phosphate monomer 10-methacryloyloxydecyl-dihydrogenphosphate (MDP) to dental oxide ceramics.
B.BRecommended bonding methods to dental oxide ceramics based on published clinical trials.
C. Number of articles revealed in PubMed using the search term “zircon* AND ceramic AND bond* AND dent* AND resin” per 5 years time period after elimination of articles which did not deal with bonding to zirconia ceramic (311 − 44 = 267).
D.Failure rates of oxide ceramic fixed dental prostheses retained by resin-bonded retainer wings or inlays related to the pontic location.
Which of the following is NOT included in the passage?
A.Industrial development includes the simplification of complex chemical processes.
B.Diluting wastes needs certain amount of water.
C.Demands for water will go up along with the expanding population.
D.Intensive cultivation of land requires more and more chemicals.
A.1,150,000
B.1,100,000
C.1,650,000
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!