Manufacturers have discovered the secret of colours in marketing______.

A． by accumulating their various experiences

B． by experimenting with different colours

C． by developing the discipline of colour psychology

D． by trying not to make mistakes

[单选题]The researchers have discovered that the formation of habit can beA． predicted B. regulated C. traced D. guided

[单选题]B．rain researchers have discovered that the formation of new habits can beA．predicted.B．regulated.C．traced.D．guided.

[单选题]Who discovered nitroglycerine?A.Bertha von Suttner.B.Ascanio Sobrero.C.Alfr

Secret codes （密码）keep messages private．Banks， companies， and government agencies

[单选题]Password is a secret series of(73) that enables a user to access a file, computer, or program. On multi-user systems, each user must enter his or her password before the computer will respond to(74). The password helps ensure that(75) users do not ac

[单选题]D．aydreaming，science has discovered，is an ______relaxation technique.A． effectiveB． affectiveC． efficientD． affectionate

Secret codes（密码） keep messages private．Banks，companies，and government agencies u

[主观题]Iwouldappreciate_____itasecret.(A)yourkeeping(C)thatyoukeep(B)youtokeep(D)thatyouwillkeep

[单选题]Password is a secret series of(69)that enables a user to access a file, computer, or program. On multi-user systems, each user must enter his or her password before the computer will respond to(70). The password helps ensure that(71)users do not acce

I would appreciate ________ it a secret．A. your keepingB. you to keepC. that you